You haven't got many fun answers yet? Here are a few nice programs http://incredible.pm/ http://incredible.pm/ http://fluffynukeit.com/software/fnistash/ http

You haven't got many fun answers yet? Here are a few nice programs http://incredible.pm/ http://incredible.pm/ http://fluffynukeit.com/software/fnistash/ http://fluffynukeit.com/software/fnistash/ http://hledger.org/ http://hledger.org/ If you're looking for not-necessarily-polished personal toy projects, probably just about everything in Hackage's "Game" category fits: http://hackage.haskell.org/packages/#cat:Game http://hackage.haskell.org/packages/#cat:Game Monadius has an interesting look. Sadly a touch of bitrot since 2013 - you'd need to `cabal get monadius` and edit --- Monadius-0.99/src/Monadius.hs 2013-05-28 +++ Monadius-fix/src/Monadius.hs 2017-01-25 @@ -18,5 +18,5 @@ import Data.List import Data.Maybe -import Graphics.UI.GLUT hiding (position) +import Graphics.UI.GLUT hiding (position, DebugMessage)