Mojotron is an open source twin stick shooter similar to Robotron: 2084 or Llamatron. The game uses ClanLib 0.6 which is not available on Ubuntu. I’ve been updating the game to SDL2 so that it is easier to build. I’ve also fixed some bugs and created a new visual look for the game. I wanted more of the serious tone of Robotron not the weirdness of Llamatron but the original graphics are still available. I’ve created a kickstarter to get funding for open source game projects.
https://www.kickstarter.com/projects/850526497/mojotron-robot-wars
http://identicalsoftware.com/mojotron/
The source will be released at the end of the kickstarter assuming it is successful.
Let me know if you have any questions.