Wednesday, May 13, 2015

Limit Load, new arcade combat flight simulator

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Stealth development might not be very "open-sourceish", but it sometimes makes for some nice surprises in our project showcase forum.

This time it was the completely new open-source game Limit Load, self described as:

A cockpit flight game that is more of an arcade than a sim. The game is built on the Panda3D game engine. It is similar to the ancient games like the classic Wings or the very good Strike Commander. The story and the atmosphere are important elements of the game, so a lot of focus is placed on that too.
Here is some in-game action and it seems quite polished already for such a new game:


Licensing of assets is still a bit of a grey area it seems, but they are fully aware of it:
The game code is licensed under GPL 3, and custom-made game assets under CC-by-SA 4.0. Some of the assets were taken from "free" (as in "not sure in which way") sources on the Internet, so their licensing situation is unclear. Eventually these should be cleared for use or replaced.
So where is my VR kit? :D

Thursday, May 07, 2015

Old school 2D RTS Wyrmsun is looking to be greenlit

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We were kindly made aware by the main developer of the 2D RTS Wyrmsun that he is currently looking for support to get this game on the Steam platform (link includes a game-play video).

Here is a description of the game we got from him:

In Wyrmsun, humans, elves and dwarves all seek to carve a place for themselves on their different homeworlds, with humans living on Earth, dwarves dwelling on Nidavellir, and elves inhabiting Alfheim. In the game's missions, each world follows separate storylines, but the various civilizations can be mixed and matched in custom games.

Wyrmsun features:
  • Retro-style graphics
  • 2 playable civilizations, and a number of non-playable ones
  • 18 quests to play, earning technology points which can be used to obtain new units, buildings and technologies
  • 38 units, 30 buildings and 14 technologies
  • Units that can earn experience, being able to upgrade to new unit types or acquire new abilities upon level-up
  • Persistent heroes, who carry over their level and abilities throughout scenarios
  • Personal names and traits for units
  • Cave, Conifer Forest, Dungeon, Fairlimbed Forest and Swamp tilesets
  • 33 maps of real and fictional locations to choose from, as well as random maps
  • Living environment, with fauna reproduction and predation
  • Very moddable game, with mod-loading capability built in
  • Grand strategy mode, where production is resolved on the strategic (world map) level, while battles are resolved on the tactical level
  • In-game encyclopedia, allowing players to learn more about the units, buildings and other elements of the game, as well as their historical and mythological sources of inspiration.
For those more inclined to help out with the code, there are two code repositories: one for the game and one for the modified Stratagus engine.

P.S.: Yes FOSS games can be on Steam as long as they don't integrate with closed source steam integration libraries; And it can be a great way to attract more users to your game and maybe even collect some donations or sell add-ons (preferably in a "release freely when sufficient funds are gathered" style). See this game for an successful example.

Friday, April 24, 2015

New FOSS 3D RTS Engine, OpenRTS!

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I had been following this really awesome looking tile based RTS 3D engine project (think Starcraft2 like) on the jMonkey Engine forums for a while, and it is now fully FOSS including the arts assets.
Don't expect a playable RTS game, but as you can seen in this video of the in-game level editor a lot of work has been done already:



You can contribute to the MIT licensed source on their github page (the author asks for help) and/or head over to the website of engine it uses, jMonkeyEngine, a great project written in Java.

Saturday, April 18, 2015

Top Futuristic Open Source Racing Games on Linux

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F-Zero and Wipeout set the standard for the futuristic sci-fi racing games genre and inspire many game developers.

Over the years, four projects of that genre were started and developed to a playable state that are now open source code:




H-Craft by Irrgheist is a free sci-fi racer with IAP on Android. It is built with the Irrlicht engine and was recently released as free software with freeware data.

While gameplay is simple without pickups, boosts or weapons, the campaign keeps it interesting. The 180°-Turns used in H-Craft level design are very refreshing to the genre.




CoreBreach is a commercial anti-gravity racing game with combat gameplay. There is a freeware dataset that allows compiling and playing a simpler-looking version.

Being an Objective C project, it was unusual to compile for me on latest Arch Linux but possible. Campaign mode, weapons and split-screen multiplayer make it cover many bases.




Racer is the only project with 100% free as in freedom data, yet unfortunately it does not compile on current Arch Linux.

Of our four projects, this is the only that has the classic drive-over boost fields.




Ecksdee is the oldest of the bunch and has challenging time trial single-player gameplay.

There are weapon pickups but without AI or human competitors they serve no purpose yet.



Project Comparison



H-Craft CoreBreach Racer* Ecksdee
Latest Version 2015-02-23 (1.3) 2012-11-30 (git) 2010-10-10 (r349) 2006-11-24 (0.0.9)
Campaign Mode yes yes no no
Split-Screen Multiplayer no yes yes no
Weapons no yes no yes
AI yes yes no no
Gamepad Support yes yes yes no
Menu UI Look good ok good ok
Music yes yes no yes
Sounds yes yes yes yes
Linux Builds or Compiling not tested, build used complicated but compiles fails fails, win32 build/wine used
Art Asset License(s) Mostly no-modify-no-distribute no-distribution, GPL, CC-BY 3.0 CC-BY-SA 3.0 GPL, CC-BY-NC, CC-BY-NC-ND
Is It Cool? yes yes yes yes
* Could not build racer, reviewing from long term memory



Related projects


Stunt Rally has a F-Zero-esque antigrav vehicles and futuristic levels but primarily it's a car racing game. The default physics don't seem to be working for a futuristic racing style.




The cool Blender Game Engine project RGP has it's .blend file available but it does not have license information. The .blend contains no audio and only one level without AI.




HexGL is pretty but has no sound, no ai, only one level and is CC 3.0 BY-NC licensed (including code) at the moment. If anybody is interested in contributing: the developer indicated interest in the MIT license.



TheRush seem to be Windows-only and does not run in Wine.

Friday, April 03, 2015

DevCorner: Overlap2D editor goes open source & Godot 1.1. Beta with huge 2D engine enhancements!

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Some nice developments on the 2D game-dev front lately, and as you will later see, 2D with full shader, real-time lights and so on can be a quite awsome way to make games, without having to hire a full team of 3D artists ;)

First of all a great new 2D editor, Overlap2D, has been released under the Apache2 license:



Contrary to other popular 2D editors (for example tiled or DAME), it is not tile based, has a modern renderer and also comes with a nice GUI editor. It currently exports to a standard JSON file and has a libGDX runtime.

Godot 1.1 BETA

Really awesome are also the latest developments of the (often described as the open-source Unity) Godot engine which you can now easily try. For me the coolest new features are the new dynamic lights (shown here in the also new isometric game sample):



This of course requires a bit more than simple 2D sprites ;) If you want to create cool 2D normal-maps, this should give you an simple way to create them.
Also very nice is the now working graphical/node-based shader editor:



If this has raised your interest in developing a game with Godot, check out this nice series of tutorials or these. It's script language is a simplified version of python, so most beginning coders should feel right at home. Also check out this cool video of a mobile game made with Godot, if you still need convincing ;)