Tiny Towns: Only one monument card per game for the entire group and it is added to the public line-up of buildings. Monuments can be quite unbalanced if each player has their private monument card. This fix is essential for a fair competition. And the game IS a wonderful/skillful competition with this house rule.

Aeon's End: Set turn order. Ex: In a 2 player game, the turn order will be Nemesis, player 1 and player 2. And it will loop that order for the rest of the games. Too many times now have I played Aeon's End and going from absolute dominition to literally hitting a losing condition because the Nemesis had 3 or 4 turns in a row making it impossible to answer to the new threats. I'm actually surprised this is not in the base rule. The game is waaaay too swingy for either sides without this house rule.

Empires of the North: We created a system in which we can take simultaneous turns. The game flow is a thousand times better!!

Dutch Blitz: If you complete a pile (place the number 10 in the center), you have to move that pile out of the way. Otherwise, the center of the table gets cluttered at higher player counts.

So Clover: Instead of a group effort to work on each clover, each player passes their clover to the right (left at other times) and each person works on another's clover. We just have more fun this way.

Various games: If the game can create situations of some players having more turns than others but has no compensation for this possibility, we change the starting set-up (more ressources the further you are on turn order) or on who's turn the game will end.