Italian indies Flowfase have released a demo of their ambient puzzle game, Particle. It seems to lack any kind of instructions, but from what I can see you are a tiny particle that is able to collect the colour of other particles and use them to set off triggers across each level. Set off all triggers and you’re able to move to the next arena. It’s all very simplistic, but the puzzles do actually require some examination to get through, and it’s remarkably trippy, at least in my pre-tea just-woke-up state of early morning blogging. Go take a look.