Simon Tatham's Puzzle collection (Which has a mobile app version too!) is a massive library of puzzle games, all of which are exceptionally well coded. I'll be showcasing a few of my favourites!
First up, we have Mines, which in my opinion is the best version of minesweeper ever released. Tired of relying on RNG in certain situations? This version has you covered. It's always possible to solve Mines if you use the right logic.
There are some really cool situations that come up too- the remaining mine count is also part of the logic puzzles!

These are amazing puzzle games
