Get 150 games for 20 quid and help charity!
A Good Bundle is all of those things in one. Starting at just 2 quid you can get a whole bunch of games with all the proceeds going to Planned Parenthood and the American Civil Liberties Union. Ok so this is America-centric but they could totally do with a bit of help these days.
There's an 8 quid bundle too but the real deal is at the $20 (€19) level where you can save a whopping $451 (€425) and get over 150 games at the same time.