Was doing survival, made it to wave 69...and the game froze. I was still able to do everything like pick up weapons, leave traps. But no new wave. I even dropped a nuke to make sure I didn't miss anything and nothing happened. It looks like there's at least 70 waves but...
Fun game for about the first 8 missions or so, then the difficulty curve has got to be one of the steepest I've ever seen, especially with some of the "should have" stuff missing.
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