Orb.
Relaxing aquarium-slash-sand-garden simulator. I always end up with way too much algae but, well. Such as it is in my real-life tanks, too.
_ Absorb Host
Fun little browser-based Skynet simulator, in which you are the titular AI. Also serves as a not-terrible introduction to actual really-real-world hacking techniques, for what it’s worth.
Pixieples.
Collection of creepy-cute, queer, indie pixel games. I really, really love the art style here, though mild NSFW warning in the sense of cartoon pixel boobies and sexual themes.
Grow and burn.
Surprisingly addictive (and relaxing)… sand garden simulator, I guess you’d describe it as?
Snaketris.
Are you a bad enough dude to play both Snake and Tetris at the same time?
(B|C)*
Definitely not for everybody, but I do kinda love the idea of regex crosswords…