Mojotron is a twin stick action game inspired by Robotron and Llamatron. While the graphics are a little unusual, the gameplay is excellent. It currently requires ClanLib 0.6. Two players are supported.
https://gitlab.com/dulsi/mojotron
What is my plan?
I'm working on a remastered version. I want to switch it to SDL2. Then update the graphics to something less crazy. For the story, the robots have destroyed humanity. The robots have been testing cybernetics on monkeys. Two of those monkeys break free and try to escape to the wilderness. The enemies would be switched to different kinds of robots.
Edit: Stumbled on old windows version https://archive.org/details/Mojotron