The game board for Maths Blockbuster, part of the 24 Hour Maths Game Show
A Wordle clone where you have to guess a sequence from the Online Encyclopedia of Integer Sequences
A happy image occurred to me of the Befunge instruction pointer as a tractor, driving around a field.
A game about adding and subtracting prime numbers. You start at a random number, with a random target. Try to reach the target, by adding or removing any prime factor of your current number.
This is a pen-and-paper game I invented in secondary school. Twenty years later, I've made a digital version of it!
Find all the Draculas in a castle.
A puzzle game about shaking hands
A game about dividing up an island
A game where you're shown a Unicode character and have to work out its name
A memory game that is bigger than you'll ever be able to deal with
Game/puzzle to do with shuffling boxes
I think the gist of the game would be that in each round, everyone guesses a number, and at the end the closest guess to the average of everyone's guesses wins. It didn't really work.
A never ending series of sums, where the answer from the last question is part of the next question.
All you have to do is say whether each number is prime.
A clicker game where each click runs a program you've written. You get points for completing challenges, but each operation in your program costs points. It works OK, but I didn't have the motivation to finish it.
A game about drawing lines
Inspired by the newspaper puzzle my wife's grandma tests me with each time I visit.
a numbers-in-a-grid game
Alas, this doesn't work any more!
A ripoff of a word game
A cross between tic-tac-toe and Reversi, apparently.
Asteroids, played on the projective plane or the Klein bottle.
Code written in the Monkey language.