Pioneers was chosen as IndieDB's "best indie of 2012," and after spending some time playing it, I can see why. The classic graphics are inspired by old-school Apple or Atari, and while they only use four colors, it still looks great. The gameplay is basically a turn-based role-playing game where you create a party of characters who have stats that determine how good they are at certain skills. The game is also a good mix of Oregon Trail, Pirates!, and Dwarf Fortress.
The goal is to create a party of adventurers to explore and map new lands, meet the natives, get rich from trading, and trying to survive while you complete quests. It's strongly reminiscent of older games from the Atari and Commodore era, but the gameplay is also very rich with a modern twist.