Best Open Source Simulation Games 2026

Simulation Games

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Browse free open source Simulation Games and projects below. Use the toggles on the left to filter open source Simulation Games by OS, license, language, programming language, and project status.

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1

Stellarium

A planetarium software that shows a 3D simulation of the night sky

Stellarium renders 3D photo-realistic skies in real time with OpenGL. It displays stars, constellations, planets, nebulae and others things like ground, landscape, atmosphere, etc.

216 Reviews

Downloads: 3,058 This Week

Last Update: 2025-08-18
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2

OpenTTD

OpenTTD is an open source clone of the Microprose game "Transport Tycoon Deluxe". For more recent versions visit our website: http://www.openttd.org

8 Reviews

Downloads: 13 This Week

Last Update: 2013-04-08
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3

Scorched Earth Online War

Online War system for IL-2 Sturmovik and Iron Front in ArmA 2

SEOW is a dynamic multiplayer campaign system for running on-line wars using the IL-2 combat simulator together with Iron Front in ArmA 2. SEOW is a free add-on for IL-2 and Iron Front in ArmA 2 released under the GNU Public Licence. For an install of SEOW, you need the MP, the DB and the DCS, 3 downloads in total. Check out the Files tab above for direct downloads.

Downloads: 3 This Week

Last Update: 3 days ago
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4

Lock On: Croatian mod

Croatian translation mod and Croatian Air Force mod for Lock On: Flaming Cliffs. - Hrvatski prijevod i modifikacija za Hrvatske Oružane Snage namijenjen simulaciji Lock On: Plamene litice. Modifikacija pokriva prijevod sučelja, uputa, misija, Hrvatske

Downloads: 0 This Week

Last Update: 2013-04-19
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