
Operation: Harsh Doorstop is a free, community developed, tactical shooter. Developed by the studio Drakeling Labs in partnership with MicroProse Software, Inc. Built using the OHDCore framework for Unreal Engine 4.
Prices for US · Updated 8/29/2026

Operation: Harsh Doorstop – MicroProse announces Publishing deal - War History Online
War History Online · 6/17/2020

MicroProse Working on Two FPS Games - Warfare 1944, and Operation: Harsh Doorstop - GameWatcher
GameWatcher · 6/16/2020

Operation Harsh Doorstop screenshots-2 - DSOGaming
DSOGaming · 6/16/2020

Operation: Harsh Doorstop - Images & Screenshots - GameGrin
GameGrin · 5/10/2020
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