🕶️ A view of its user interface (taken from the author's website) with a platform puzzle similar to ‘The Incredible Machine’ where the player has a robot and objects (on the right side of the screen) to solve a puzzle. 📚️ Principia is a libre, multiplatform sandbox puzzle game. Following on from the successful commercial game “Apparatus” (on Android) in 2011, it was freed in 2022. Players build machines and simulate them using physical simulation. These can be mechanical devices, remote-controlled cars, or pinball machines. Players can also design Lua scripts that interact with the simulation. An Adventure game mode gives players control of a small robot that obeys their commands. Players can take part in a giant battle against enemy robots, or take control of the giant robot and wreak havoc on the world.

🕶️ A view of several types of microorganisms evolving in water. The menus are mainly located at the bottom left (environment and compounds) and bottom right of the screen (energy level, life and other essential compounds of the organism controlled by the player). 📚️ Thrive is a libre, multi-platform, single-player / multi-player (local/online, competitive) game of great ambition, taking as its theme the evolution of species from the microbe stage to the space age and beyond. The game is divided into 7 stages: Microbe, Multicellular, Aware, Awakening, Society, Industrial and Space. Through each of them, the player will guide his creature towards intelligence, sensitivity and the stars. The project has set itself 2 major objectives: to create a captivating and fascinating game that respects the players' intelligence, and to stick as closely as possible to known scientific theories.

🕶️ A view of its IU with a 1st-person view into space. The ship is facing an asteroid, and in the background there appears to be an explosion. 📚️ Oolite is a libre, multi-platform space simulation inspired by the classic game Elite, in which the player travels in space to trade and wage war. In the tradition of open-world games, there is no pre-defined scenario, the player can be a millionaire trader, a seasoned fighter, a dreaded pirate, a lone miner, a notorious smuggler, or all at the same time, or anything else, depending on his or her own actions.