Links:

0 A.D.

open-source real-time strategy (RTS) game of ancient warfare. Lead a civilization set in the imaginary year of 0 A.D., develop a thriving city, raise a mighty army and contend with rivals for hegemony of the world. review

Basement

A scientist desperately needed money for his world-changing project. After being rejected by investors, he decided to make money by himself and started building a chemical factory... well a special chemical factory - not exactly legal kind of it ;) review

Bos Wars 2.7

a futuristic real time strategy game (RTS). In a RTS game, the player has to combat his enemies while developing his war economy. Everything runs in real-time, as opposed to turn-based games where the player always has to wait for his turn. The trick is to balance the effort put into building his economy and building an army to defend and attack the enemies. You can play against human opponents over LAN, internet, or against the computer. review

CaesarIA (openCaesar3) 0.5

city building game where you act as a Roman governor trying to build up a grand city. Open source remake of Caesar III. review

Civ Evolution 1.2.0

turn based game originated from Civilization but with more strategical depth. review

Cytopia

a free, open source retro pixel-art city building game. review

Dark Oberon

an open source real-time strategy game similar to Warcraft II released under GPL. It has got unique graphics - textures created from shots of real models made out of plasticine. review

Dune Dynasty

a continuation of the classic real-time strategy game Dune II by Westwood Studios. review

Dune Legacy 0.97.0

opensource Dune 2 clone. It tries to be as similar as possible to the original gameplay but to integrate user interface features most modern realtime-strategy games have like selecting multiple units. review

Free Mars 0.8.7.5

turn-based strategy game. Will you succeed in colonizing your new home on Mars? review

Freeciv 3.0.7

turn-based multiplayer free strategy game, in which each player becomes the leader of a civilization, fighting to obtain the ultimate goal: To become the greatest civilization. review

FreeCol 0.13.0

a turn-based strategy game based on the old game Colonization, and similar to Civilization. The objective of the game is to create an independent nation. review

Globulation beta 4

real-time strategy game which reduces micro-management by automatically assigning tasks to units. The player chooses the number of units to assign to various tasks, and the units do their best to satisfy the requests. This allows players to manage more units and focus on strategy rather than individual unit's jobs. Globulation 2 also features AI allowing single-player games or any possible combination of human-computer teams. Also included is a scripting language for versatile gameplay or tutorials and an integrated map editor. Globulation2 can be played in single player mode, through your local network, or over the Internet. review

Lgeneral 1.4.3

a turn-based strategy engine heavily inspired by Panzer General. You play single scenarios or whole campaigns turn by turn against a human player or the AI. Entrenchment, rugged defense, defensive fire, surprise contacts, surrender, unit supply, weather influence, reinforcements and other implementations contribute to the tactical and strategic depth of the game. review

LinCity-NG

a city simulation game. review

Liquid War 0.6.3902

unique multiplayer wargame. Its rules are truely original and have been invented by Thomas Colcombet. You control an army of liquid and have to try and eat your opponents. A single player mode is available, but the game is definitely designed to be multiplayer, and has network support. review

Oolite 1.90

opensource strategy game inspired by the 8-bit classic Elite. It's up to you and your actions if you will be a millionaire space trader, a veteran combateer, a feared pirate, a lonely miner, a notorious smuggler, or all of them, or something else entirely. review

Open General

a turn-based strategy game based on Panzer General II and the 5 Star General Series originally published by SSI. It has been coded from scratch and combines the most familiar and popular features from that series, combined with vastly improved computer opponent game play and new features for equipment file, campaign and scenario designers. review

Openage

Everybody knows Age of Empires - the great historic real-time strategy game. Here you can download a free clone of Age of Empires II. Still in development so a little bit harder to install ... compile and run. review

OpenDune

an open source re-creation of the popular game Dune II, probably one of the most popular real time strategy games where you need to build a base on an unoccupied territory of planet Arrakis, harvest spice, defeat intruders and hopefully conquer the whole planet. review

OpenLoco 22.06

an opensource re-implementation of Chris Sawyer's Locomotion. A construction and management simulation video game that simulates running a transport company. review

OpenRA 20200202

open source recreation of the classic real time strategy game (RTS) Command and Conquer. review

OpenRCT2 0.3.5.1

great opensource re-implementation of RollerCoaster Tycoon 2 - build the best theme park in the world. There are even many improvements over the original version like OpenGL support, multiplayer or fast-forwarding gameplay. review

OpenTTD 13.0

an open source simulation game based upon Transport Tycoon Deluxe. It attempts to mimic the original game as closely as possible while extending it with new features. review

Pacific War 2.2

free strategy game that covers virtually every aspect of the war and includes just about every ship, aircraft, land unit, and important leader that took part in the conflict. review

Pioneer

open ended single player space adventure set in 33rd century. You can try your hand at piracy, make your fortune trading between systems, or do missions for the various fractions fighting for power, freedom or self-determination. review

Signus: The Artefact Wars 1.96.0

Classic turn-based strategy war game similar to the old Battle Isle series. Earth sent a fleet of colony ships to a distant planet called Arkonis. When the fleet arrived, they found the planet inhabited by an alien race advanced beyond human comprehension ... review

Simutrans 121.0

Transport and economical simulation game. The player can create bus and rail connections and transport passengers, mail and goods in and between cities and industries. Even passenger ferries and oil tankers are included in the game. review

Starport Galactic Empires 1.24

be the captain of a space-ship in this fully graphical, real-time action game, set in a strategic multi-player world. 1 review

Titans of Steel 1.2.1

Tactical turn-based mech-game made for Windows 9x. review

Unciv 4.6.0

an opensource reimplementation of the most famous civilization-building game ever. Build your civilization, research technologies, expand your cities and defeat your foes! review

Unknown Horizons

a 2D realtime strategy simulation with an emphasis on economy and city building. Expand your small settlement to a strong and wealthy colony, collect taxes and supply your inhabitants with valuable goods. Increase your power with a well balanced economy and with strategic trade and diplomacy. review

War in Russia

Comprehensive simulation of the World War II - covers the time from 1941 to 1945 with four campaigns, eight historical scenarios and one hypothetical scenario. For one or two players. review

Wesnoth 1.16

turn-based strategy game with a fantasy theme. review

Widelands 1.0 / 1.1 RC

opensource real-time city building strategy game with singleplayer campaigns and a multiplayer mode. Inspired by Settlers II. review