Harvest: Massive Encounter, by Oxeye Game Studio, is a survival-based real-time strategy game with several modes of play that lend a free-form tower defense feel to the experience. You play the humans defending an expanding plot of land against swarms (and I do mean swarms) of alien UFOs, mechanized bots and other baddies. It's an extremely frantic game that's usually more nerve-wrecking than brain-stretching.
When compared to most real time strategy games, Harvest is light on the strategy and depth of unit abilities but heavy on arcade-style action and swarms of enemies. Set in the distant future, you play the role of a new worker on the planet Hephaestus who must build a defense network against invading aliens. You won't fight just one or two at a time, however. Expect each wave to number in the hundreds, all of which must be dispatched before you can take a breather. Saying this game is intense doesn't do it justice.
Developer: Oxeye Game Studio
Publisher: Oxeye Game Studio
Release Date: 5 Mar, 2008
Genre: Strategy, Tower Defense, Sci-fi