I'm not sure what is meant with 'Create actions' in the controls. C / SPACE does not seem to do much for me. But I like the game.
EDIT: some weird things happening in endgame. With pretty much everything unlocked but with around ~45-50/99 Gem Rate pretty much only gems spawn, making it impossible to actually create 'points' but racking up gems really fast. Then at ~50+ Gem Rate nothing spawns anymore.