An expanded version of a Ludum Dare 38 entry, Protolife takes the tower defense and gives it a more deliberate hands-on approach, as you construct towers one-block-at-a-time to withstand the incoming insectoid tide.
Reminiscent of Infested Planet’s hordes, Protolife threatens to overwhelm with massive flowing groups of alien bugs. To destroy and hold back the infestion, you must manage thinly-stretched resources and build walls and various types of towers and other defenses. But crucially, rather than playing towers directly, you control a builder bot that makes towers block-by-block, with different designs resulting in different kinds of towers and different functions.
This more deliberate design means every choice counts since dissembling and repositioning your barriers and defenses takes precious times. It also means you have great flexibility in how your defenses are constructed, especially with how block structures can be connected and built to maximize space. Space management is even more crucial as you mine upgrade crystals and decide where to best utilize them.
Protolife is available for $11.99 on Steam.