The first thing that came up is this Warhammer 40,000 craziness. It may seem strange, but I would've probably loved this as an oft-grounded 12-year-old.
(from Wiki)
Warhammer 40,000 is a tabletop miniature wargame produced by Games Workshop, set in a science fantasy universe. Warhammer 40,000 was created by Rick Priestley in 1988 as the futuristic companion to Warhammer Fantasy Battle, sharing many game mechanics. Expansions for Warhammer 40,000 are released from time to time which give rules for urban, planetary siege and large-scale combat, respectively. The game is currently in its fifth edition. READ MORE
Thanks for stopping by you RANDOM sons of be's!