A few months back, Clint Hocking did a “rehearsal” of his GDC exploration lecture at IGDA Montreal. Since I had just started playing Crackdown, his one point of “providing many small/dispersed rewards, encourages exploration” really stuck in my mind.

Those dang agility/hidden orbs scattered across the map motivated me to explore the richness and depth of Pacific City, way beyond what I would have done in a normal, more linear, game.

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Mind you, the fact that they were linked to Xbox achievements was certainly part of the motivation as well. And, more generally, the idea of all those achievements serving as small rewards to more thoroughly explore the game overall is an interesting one. That is, minus the achievements, would most folks simply clear the 21 gang leaders and be done?

Raphael van Lierop has a lengthy discussion on achievements running in the IGDA’s forums…