CS got a fresh coat of paint and some magic powers, and somehow that's enough to lose your whole evening.
Fun fact: Its anti-cheat software runs at the kernel level and activates the moment your PC boots.
Back in '93 this was genuinely terrifying, now it looks like angry Lego and that's somehow still brilliant.
Fun fact: Has been ported to run on pregnancy tests, ATMs, and at least one John Deere tractor.