A masterful physics puzzler, "Monstaaa!" should be right up your alley if you're looking for a game that's light-hearted and easy to dive into but continually ups the ante on challenge.
"Brain Dead 13" is a port of a somewhat obscure FMV game, originally released all the way back in 1995, that strived to invoke the spirit of Don Bluth’s legendary "Dragon’s Lair".
Do you remember that game you played as a kid, where you'd see how long you could keep spinning in circles without spilling your lunch? Now think about what would happen if you attached a leaderboard to that.