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!

Next up is Galaxies, a puzzle game where you have to fill in the whole grid- using rotationally symmetrical boxed in areas with planets at their center.
This game is not that difficult, more on the relaxing side, but that doesn't make it any less fun. There's a very methodical way of doing things, especially at the start, which leads into an end-game which requires either trial and error or some good gamesense.

Here we have Signpost, where the goal is to find the sequence in which all the signs point at each other.
A sign can point over another sign, so you aren't quite sure which sign it is pointing at. At the start, a few of the signs are lit-up, providing some direction.
If you lock in part of the sequence that isn't connected to an existing number, it labels it as a letter variable, and each letter variable has a different colour! On a big game board, it looks really cool to have all these different colours present.
This game gets really tricky if you mess up the sequence, so you may have to rewind a lot.

Here's a fun one called Net. Net is a theraputic feeling puzzle where you rotate squares to connect the entire circuit to the central power source.
There are 2 versions, a standard one and one where the circuit can wrap the screen. I prefer the harder, wrapping version as the puzzle is already fairly simple.
There is a different version called Netslide where you slide entire rows and columns, but this one is very intimidating and I haven't even attempted it for more than a few minutes.

Last puzzle I'll showcase is called Pearl. Pearl is a peculiar one with very unintuitive rules, but I think it's worth learning how to play it.
Pearl is about making one loop that goes through each pearl on the board. Pearls are either black or white; Depending on the colour, the way the pearl can be connected to the loop differs.
Black pearls are located on bends, and each tile leading into them must not include a bend.
White pearls are located on straights, and one tile leading into them must include a bend, but 2 bends are fine as well.
Confused yet? so was I. Best way to learn is to just jump into it and mess around- it'll show a red indicator if it's not adhering to the rules.

If you actually read this far, thanks! Hope you have fun with the puzzles.


