Free water features software for linux

freesteam is an open source implementation of international-standard steam tables from the International Association for the Properties of Water and Steam (IAPWS).

freesteam lets you compute water and steam properties for a wide range of pressures and temperatures: you can specify the state of the steam in terms of a variety of combinations of known properties, then freesteam will solve and allow you to query to find the values of the unknown properties.

IAPWS-IF97 Industrial formulation (high speed, but complex code)
IAPWS-95 Scientific formulation (low speed, but simple code)

A plug-in to allow freesteam to be used from the EMSO simulation package has been developed; stay tuned for more of these plug-ins.

If you find freesteam useful, or you have some comments, or you think you might be able to help with its development, please contact us.

Ember is a 3d client for the WorldForge project. It uses the Ogre 3d graphics library for presentation and CEGUI for its GUI system.
The client can model a full 3d world with dynamic terrain generation. It has an easy to use GUI system with widgets for server browsing, login, and character selection, and context menus for in game interaction.
WorldForge::Ember has support for experimental graphical features such as dynamically generated trees, realistic water, and ground cover.
Main features:
- Full 3d world with dynamic terrain generation
- Easy to use GUI system
- Context menus for in game interaction
- Support for experimental graphical features such as dynamically generated trees, realistic water and ground cover

Scorched 3D project is a game based loosely (or actually quite heavily now) on the classic DOS game Scorched Earth "The Mother Of All Games". Scorched 3D adds amongst other new features a 3D island environment and LAN and internet play. Scorched 3D is totally free and is available for both Microsoft Windows and Unix (Linux, FreeBSD, Mac OS X, Solaris etc.) operating systems.
You can pick up the game and begin playing very quickly. Then, when/if you are interested, you can poke in the dimmer recesses of the game and get into the strategy (or just ignore it altogether!).
At its lowest level, Scorched 3D is just an artillery game with two+ tanks taking turns to destroy opponents in an arena. Choose the angle, direction and power of each shot, launch your weapon, and try to blow up other tanks. Thats basically it.
But Scorched 3D can be a lot more complex than that, if you want it to be. You can earn money from successful battles and use it to invest in additional weapons and accessories. You can play with up to twenty four other players at a time, mixing computer players with humans.
Theres a variety of changing environmental conditions and terrains to be dealt with. After the end of each round (which ends when everybody dies or theres only one person left), you get to buy stuff using the prize money you won from previous matches.
Enhancements:
- Added: UDP message handler for games COMs
- Added: ClearTracerLines console command
- Added: Moved ODE and zlib to external libraries and updated vesions
- Added: Changed objects and trees to be targets
- Added: Removed GIF files in preference to PNG files
- Added: wxWindows server GUI has been depricated (now console only)
- Added: Windows build of scorched has been updated to use visual studio express
- Added: Split server, client and laucher into seperate applications (server now has no reliance on GUI libs)
- Added: Refactored source to give a better client/server devide
- Added: More smoke kicked up when tank drives over and removes a target
- Added: Transparency available to missiles (and all other models)
- Added: Users connecting to web admin console from the local machine dont need an admin account
- Added: Console server now sends server logging to stdout
- Added: GLWTime widget to allow a clock to be drawn on screen
- Added: Dragging the mouse will drag the landscape (clicking still moves to look at point)
- Added: Split and inter-dependancy removal of configure.ac files
- Added: Camera recentered on tank at the start of each new round
- Added: For single player games camera position remembered for each player
- Added: Server only compilation for Windows and Unix systems
- Added: Text chat shown during level loading
- Added: All models are cached including animated models
- Added: All models are now animated (missiles, tanks, targets, boids etc...)
- Added: Bird animations are now not syncronized
- Added: Concept of an offical server, displayed on the net browsing dialog
- Added: Custom port and socket support for stats database connection
- Added: Asyncronous message support to UDP message handler
- Added: Server is only simulated periodically when playing offline
- Added: Mysql reconnection when connection lost
- Added: File logger splits files into ~256K chunks (and not by number of lines)
- Added: Removed use of ODE in preference to a simplier particle physics engine
- Added: Added target collision space that can be used for fast target bounds checking
- Added: Server now simulates the shots in real-time allowing for the addition of real-time gameplay
- Added: Server only sends initial shots and seeds to clients for each turn saving on bandwidth
- Added: ScorePerMoney value is now per 1000 rather than per 100
- Added: Web management authentication failure reponse is delayed before sending back to client
- Added: Web management sessions view to show logged in web admins
- Added: Web management exit when empty option (to exit server when no one is playing)
- Added: Web management log file search feature for finding strings in log files
- Added: Web management landscape, main, players, mods settings dialogs
- Added: Web management mod upload and import feature to allow remote uploading of mods
- Added: Web management looking up of unique ids for users
- Added: Web management combining user stats
- Added: DebugFeatures option for server.xml to disable InfoGrid
- Added: New wall types: WallActive and WallInactive
- Added: botonly option for accessories (ie: only for bots, not for AI objects)
- Added: Server file logging can be turned on from server settings
- Added: Concept of movement routines for targets so targets can now move
- Added: Boids and ships are now targets (can have a physical presence)
- Added: Boids and ships have the same positions on all clients and the server
- Added: Cleaned unused tags from landscape placement and ambientsound files
- Added: All aspects of the landscape (placement, sound, movement...) can be defined in the same file
- Added: Concept of a general include file to replace specific sound, movement, placement files.
- Added: nocollision, nodamageburn, nofalling, displaydamage and displayshadow attributes to targets.
- Added: New Plan map and buoys drawn on map
- Added: Server log page on web admin can auto-refresh
- Added: minsize and maxsize attributes to tree placement type to control scale
- Added: WeaponGroupSelect to allow weapons to select target from groups (e.g. boids weapons)
- Added: thrusttime and thrustamount attributes to WeaponProjectile to simulate missile thrust
- Added: maintainvelocity attribute to WeaponRoller to allow rollers to main the previous weapons momentum
- Added: Objects that become very small are now culled (not drawn)
- Added: maxobjects attribute to tree placement to set an upper limit on the number of trees created (default 2000)
- Added: Trees are now specified as a different model type (Tree) instead of a seperate placement type
- Added: Spline movement type for moving targets round a pre-defined set of control points
- Added: usefuel attribute on WeaponMoveTank can now be true, false or an integer for a constant use of fuel.
- Added: Changed the default web interface colors to match the forum scheme (finally)
- Added: Laserproof shield attribute can be set to true, false or total. Total blocks all laser damage.
- Added: Plan view darkens to increase the visibility of when lines are drawn by other players
- Added: flattendestroy attribute to targets to specify if they should be removed then a tank stops near them
- Added: Scorched splash screen shown each time a new version is installed
- Added: Capability for music (music can be configured for different actions both globaly and on a per level basis)
- Added: tabgroups to accessories, a tabgroup is the grouping used to group accessories in the buy dialog
- Added: Seperate volume control for music
- Added: Per-level options to allow levels to specify specific options e.g. Teams, No Walls etc..
- Added: Customer user avatars can be placed into the .scorched3d/avatars directory
- Added: nofallingdamage attribute to targets so they dont get hurt when falling
- Added: drag attribute to WeaponProjectile to allow a more realistic projectile motion
- Added: Error messages with lines that are more than 75 characters are wrapped onto the next line
- Added: Players can gift money to other players in their team
- Added: Some floats can now be a random range or a distribution of values
- Added: Web management chat is now in real-time
- Added: Reason for user discconecting from a net game is now visible to all clients
- Added: Shift-z hides and shows all gui components
- Added: Chat channels for server side filtering of chat
- Added: Chat spam auto muting
- Added: Chat supports links to players, channels and weapons. Displayed as tooltips.
- Added: New launcher and splash screen graphics
- Added: Scorched server automatically calculates ranks and orphaned avatars
- Added: WaterCollision attribute to WeaponProjectile
- Added: WeaponLabel and WeaponGotoLabel to allow looping with in weapons
- Added: Any image file type can be used for textures, levels, etc... (not avatars)
- Added: texture attribute to WeaponLightning to allow different textures to be used
- Added: jpg file support
- Added: Full screen anti-aliasing support
- Added: New TankAIs, ais are more accurate, can defeat shields and use fuel, napalm, rollers
- Added: boolean option to select whether graphics are paused when window focus lost
- Added: WeaponMessage primitive to be able to display messages (combat channel only - should add ability to select channel)
- Added: Level of detail for water (geo mipmaps) and changed water bounds so all of it moves
- Added: New water movement algorithm using discrete fourier transform (based on an algorithm by Thorsten Jordan)
- Added: GL shader support for more realistic renderering of the water
- Added: Landscape reflections in water
- Added: Shadows on water (hides sun too)
- Added: Option to disable pausing of graphics when window loses focus
- Added: FramesPerSecondLimit option to settings dialog
- Added: Admin audit log showing all admin operations on players
- Added: Admin username and optional reason are added to the list of banned players
- Added: Realtime-shadows
- Added: Depth-cueing on landscape
- Added: Assists are awarded when a tank resigns
- Added: Player tank remains when a player disconnects during shots being played
- Added: dampenvelocity tag to control amount of inertia given to rollers with maintainvelocity true
- Added: Different and more explosion textures
- Added: Explosion mode is always animate (noanimate tag added to WeaponExplosion)
- Added: Teleport animation
- Added: Server looped messages are sent on the announce channel so they can be turned off
- Added: Servers with stats support with always give the same players the same player id
- Added: Players that are muted and then leave and rejoin are still muted when stats support is enabled
- Added: WeaponPosition primitive to set explicit position of an accessory
- Fixed: High detail tanks being used for other players when detail level set low
- Fixed: Removed keep-alive header in http requests
- Fixed: Server will only show log files via the management interface that it created
- Fixed: SDL_Quit being called twice on the client
- Fixed: Sound failing to initialize will not prevent the client from being run
- Fixed: Optimized settings sent to the client to send only different settings
- Fixed: Optimized path finding code for tank movement
- Fixed: Wall hit indicators are now particles and so wont mask other effects
- Fixed: Server only serializes and compresses coms message once when sending to multiple clients
- Fixed: If client starts falling behind at 8x speed it will drop to 4x speed
- Fixed: Teleports with groundonly set to false should function correctly in caverns
- Fixed: Cleaned up tank state machine
- Fixed: MOTD and Rules dialogs reflect changes made while connected to server
- Fixed: Darkened night water (thanks Deathstryker)
- Fixed: Flag reseting on buying screen when buying items
- Fixed: Tanks on the plan view are surrounded by a black border (also smoothed)
- Fixed: Server web managament can view settings that do not fall into the usual brackets
- Fixed: Bug where a space in the installation file name could cause starting issues
- Fixed: Spectators cannot win (or draw) a game
- Fixed: Pressing enter can send many lines of text
- Fixed: Clients hanging when a mod download was in place

Danger from the deep (aka dangerdeep) is a Free / Open Source World War II german submarine simulation.
It is currently available for Linux/i386 and Windows, but since it uses SDL/OpenGL it should be portable to other operating systems or platforms. (If anyone whishes to port it, please contact us.)
This game is planned as tactical simulation and will be as realistic as our time and knowledge of physics allows. Its current state is ALPHA, but it is playable.
If anyone wants to contribute in development, youre welcome, just email the dangerdeep-devel mailing list. Contributing binary packages for various Linux distributions would also be much appreciated.
To get help with the game you should visit our public forum.
The game has support for multiple languages but currently only English, Italian and German are implemented. It is written in C++ with the use of the STL.
Danger from the Deep is released under the GNU General Public License. The project is hosted on SourceForge, a great supporter of the Open Source community.
Main features:
- simple main menu
- user interface (some items missing)
- basic world simulation, night and day
- realistic water and cloud simulation
- one type of destroyer, one battleship, one aircraft carrier, three subs, eight civilian ship types
- steering, firing, diving, periscope use
- free look engine for testing, periscope, UZO (aiming binoculars), bridge view
- console for logging purposes
- basic physics (acceleration, steering, firing)
- basic destroyer AI (follow, throw depth charges)
- simple vehicle preview
- mission parsing via text files, you can create your own custom missions
- tonnage recording
- log book

Windstille project is a classic jump and shoot action game.
Windstille is an old-school 2D site-scrolling shootem up game, similar to Turrican or Metroid with some influence from Another World and Flashback.
In Windstille the player will be placed in a foreign alien world and has to find its way back into safety. Special focus will be on getting the foreign world and the players character itself believable.
Exploration will be more needed than plain shoot action, even so the players-character will be equipped with a multifunctional war-suit, so he will be far from defenseless.
The game will have slow placed explore and seak sequences as well as more rough section that will feature fast shoot and jump action. The game world should be presented in a consistent state, enemies once destroyed should not respawn automatically.
The player is free to go forward and backward in the world as long as the level design allows it.
Enhancements:
- 3D sprites, giving fluent animation and the ability to zoom in without pixelation in the characters
- multi color light effects for added athmospheric effect as well as new gameplay posibilities
- flexible particle systems for fire, water smoke and such
- dynamic 2D water
- Squirrel based scripting
- console to enter script commands
- simple dialog system
- cutscene support
- menu system for easy access to all the parts and features of the game

RogueScanner project is an open-source vulnerability management tool that is used to gain greater network visibility to enable you to quickly identify and remove rogue wireless devices that may provide a back door to access your critical data and infrastructure.
Considering that rogue access points and peers represent a major threat to data integrity, RogueScanner is a valuable tool that you can start using today at no cost.
More than 300 companies manufacture access points, and there are more than 10,000 different models of network infrastructure.
Companies thus face a major challenge in maintaining a system to track and identify all potential rogue wireless devices and in continually scanning the network to identify them. To address this challenge, Network Chemistry has made an open-source product available to help organizations begin to immediately scan their networks.
RogueScanner is available for use at no charge by organizations looking for a tool focused on device identification and rogue detection. RogueScanner leverages the Collaborative Device Classification system to automatically lookup and identify the device type and its identity in real time.
Enhancements:
- Many scanning and classification improvements.
- Support has been added for parsing routes under from IOS CLI.
- Support has been added for dumping Cisco device CDP cache via both SNMP and CLI (IOS and CatOS).
- Support has been added for sniffing CDP broadcasts off the wire.
- CDP information is now submitted to the classification server and used for classification.
- FTP (21/TCP) has been added to the list of ports that are probed if open.

RogueScanner project is an open-source vulnerability management tool that is used to gain greater network visibility to enable you to quickly identify and remove rogue wireless devices that may provide a back door to access your critical data and infrastructure.

Considering that rogue access points and peers represent a major threat to data integrity, RogueScanner is a valuable tool that you can start using today at no cost.
More than 300 companies manufacture access points, and there are more than 10,000 different models of network infrastructure.

Companies thus face a major challenge in maintaining a system to track and identify all potential rogue wireless devices and in continually scanning the network to identify them. To address this challenge, Network Chemistry has made an open-source product available to help organizations begin to immediately scan their networks.

RogueScanner is available for use at no charge by organizations looking for a tool focused on device identification and rogue detection. RogueScanner leverages the Collaborative Device Classification system to automatically lookup and identify the device type and its identity in real time.

Whats New in This Release:

+ Reserved VLANs (1000 < VLAN < 1025) on Cisco devices are not queried.
+ Capture packets to trace.pcap and perform a hexdump of them in the log file
if DEBUG_PACKET is set (debug=0x01 or better).
+ Promiscuous mode testing is disabled unless ENABLE_SCAN_PROMISC is defined.
+ The switch/network scanning interval was bumped up to 24 hours.
+ Attribute data in the EvidenceMap wasnt being printed out correctly (always showed
up as "true") when issuing "device detail" commands in the CLI.
+ Ignore MACs in the bridge table that arent "learned" when querying switches.
+ *TAnalysisManager::LookupOrCreateDevice() will now refuse to create devices outside
"home_net" ranges, thus the IPs wont be scanned even if they are passively observed
on the local network.
+ Ignore our MAC address if a switch reports it to us.
+ Log timestamps are now in GMT.
+ Prevent duplicates in the "udp_ports" evidence by using AddEvidence() instead of
inserting into the EvidenceMap directly.
+ Manually invoke Rubys garbage collector after scanning a switch/router.
+ Added "packet queue size" CLI command to show how many packets are in the
AnalysisManagers packet queue.
+ If a device fails to be classified the classification will be retried automatically
in one minute.
+ All communication with the classification server is performed in a separate thread.
+ Keep ARP scanning from starving other threads for CPU time by introducing a delay
in addition to any that is added by bandwidth throttling.
+ Replaced internal ARP and routing table on WIN32 systems with functions from the
IPHelper API.
+ Added "device list size" command to show how many devices have been found.
+ Add read community strings from configured infrastructure devices to the list
of strings used when probing unknown devices.
+ Discard deferred scans if another scan of the same type is already deferred for
a device.
+ Added reporting of DHCP data.
+ If no scans are pending against a device, but a new port is found open then
submit the devices evidence.
+ Devices are re-scanned whenever a re-occuring ARP/Ping scan is launched.
+ Added "deferred list" CLI command to show scans that have been deferred.
+ Added "sniffer status" CLI command to report the number of packets that
have been received and dropped.
+ If we discover the IP of a device that we only knew about the MAC address for,
then issue scans against it.
+ If we see the MAC address associated with an IP change, then re-scan it since
its likely to be a different device.