DCS: World is described as 'Digital Combat Simulator World (DCS World) 2.8 is a free-to-play digital battlefield game' and is a flight simulator in the games category. There are six games similar to DCS: World for a variety of platforms, including Windows, Linux, Steam, Mac and PlayStation Network apps. The best DCS: World alternative is FlightGear, which is both free and Open Source. Other DCS: World like games are War Thunder, X-Plane, YS Flight Simulator and WWII Online.
The FlightGear flight simulator project is an open-source, multi-platform, cooperative flight simulator development project. It also simulates space flight in Earth's orbit.
FlightGear is the most popular Windows, Mac & Linux alternative to DCS: World.
FlightGear is the most popular Open Source & free alternative to DCS: World.
War Thunder is a multiplayer online game combat flight game developed by Gaijin Entertainment for Linux, Microsoft Windows, Mac OS X, and PlayStation 4.
X-Plane 10 Global is the world’s most comprehensive and powerful flight simulator for personal computers, and it offers the most realistic flight model available.
X-Plane is the most popular Android, iPhone & iPad alternative to DCS: World.
X-Plane is the most popular commercial alternative to DCS: World.
YS Flight Simulator is a free flight simulator specifically designed for computers without powerful graphics rendering capabilities.
Reentry is a space flight simulator based on real life spacecrafts. You create a new astronaut, gain levels and experience for every move you make by completing missions in space.
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is a Air Combat Flight Simulator, even if it is more simpler.