60		Universal Combat Collectors Edition 2.0 (Windows, 2015)
54		Wing Commander: Armada (DOS, 1994)
52		Battlecruiser 3000AD (DOS, 1996)
50		Wing Commander: Armada (Windows, 2013)
50		Battlecruiser 3000AD v2.0 (Windows, 1998)

Notes: Games similar to Protostar: War on the Frontier, Games like Protostar: War on the Frontier, Tsunami Media, Inc., Tsunami Media, Inc., DOS, Simulation, Strategy, Tactics, Sci-Fi, Futuristic, 1st-person, Space Flight, TsAGE, Simulation - Space trading and combat, PC, Game Similarities.