Terraria
Lack of a bunch of monies contributed to not being able to get super awesome AAA titles, but terraria was still, and still is a lot of fun. From the prerelease hype with exclusive lp's, to the well received launch, to the continued updates by the devs that continue to change the scope and breadth of the game, terraria continues to impress.
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There is no shame in not knowing; the shame lies in not finding out