Craft-your-own-guns shooter United 1944 is having a three-day playtest that's live right now

The WW2 shooter United 1944 struck me as a potentially interesting twist on the genre when I first heard about it back in March. Shooting enemies and capturing control points are mixed with exploration, scavenging, and crafting: You start the game "literally with nothing," and must dig up resources and plans so you can assemble weapons, fortifications, traps, and other items that will enable you to start fighting in earnest...
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