Some links

Nomignolov is about abstract strategy games. You can add a new game for two or more players, a puzzle just for one player, and even a cellular automaton (one player without choise).

Here are some links with information about the scripts that come with Nomignolov.
You can find a lot of material in The World of Abstract Games, by João Pedro Neto. For instance, about Dao and Entropy along with a hundreds of others!.

Of course there is always the Wikipedia, for instance with information about Conways' Soldiers, Tablut and Hex.

Information about Diffusion can be found on the site of its creator Mark Steere, along with all his others games.

You can play a lot of abstract games via e-mail just with a free subscription to Richard's Server, where you can find the rules of a lot of games. For Wari, I used the rules found there.

I don't think there's need for information about Tic tac toe or the game of the 14-15 (the 15 puzzle) by Sam Loyd. And maybe you don't know yet about 3verse, so go and discover.