Open Source at Gamblify
Both our slot machine games as well as our virtual solution are made using the Godot game engine. We are quite active community members in that we create pull requests and issues on GitHub and have visited every GodotCon held so far. Read more about the great Godot project by clicking the logo.
Blender is a mature 3D creation suite. At Gamblify we use it for creating all our 3D assets. We have yet to contribute directly to the codebase, but hope to be able to do this in the future.