Antistress Bubble
Virtual bubble wrap with sound. Not a puzzle at all — included because sometimes that is what you want.
Bubble wrap on a screen. Click a bubble, it pops, the sound is right. When the sheet is empty you get a new one.
There is no puzzle here and no pretence of one. It is included because it does the one thing it sets out to do properly: the audio is well recorded, the pops have weight, and nothing interrupts.
Best used as a break rather than a session — five minutes between harder puzzles, not twenty on its own. If you want something in the same register with an actual objective, try Antistress Pixels instead.
Sound on. It is most of the point.