Gamesnacks.com has over 140 simple games you can play in browser with no ads or crap. I’ve played most of them.
These are the games I keep coming back to again and again. Many are … based on other existing games.
Basketball Masters – Bubble Tower – Candy Bubble – Dunk Brush – Endless Siege – Flippy Box – Hexa Dungeon – Pin the UFO – Retro Drift – Stack Bounce – Totemia – Tower Crash 3D – Knife Smash