1. The Battle for Wesnoth

Wesnoth is a turn-based high-fantasy strategy game that looks polished and offers a staggering amount of content. There are 17 official single-player campaigns to plow through, and that’s before you get to the user-made content. ..

Wesnoth is a game that offers a lot of different unit types, spread across seven different factions. Whether you want to play by yourself or take part in massive multiplayer battles, the Battle for Wesnoth has everything you need.

2. 0 A.D.

In 0 A.D., you play as one of several thousand people who have banded together to fight a war against an alien race. The game is in its 25th alpha release, but it’s already in playable shape. It’s hard to imagine that a global group of volunteer developers has put together such a cohesive game.

The game is a great addition to any history buff’s library. It has unique looks and mechanics that are sure to keep you entertained. The map design is based on accurate historical data, and there are plans for future naval warfare.

3. CUBE 2: Sauerbraten

Quake-like shooters are popular in the gaming community, and Sauerbraten is one of the most popular ones. The game is simple to play, but its philosophy is to make it possible for the level editor to work in real-time. This makes the game look and feel more realistic, which is why it’s so popular.

Sauerbraten is unique because it allows the community to easily create levels. You’ll find great gems within the selection, and the map editor is actually in the game itself. So there’s no reason not to try your hand at making a hit map for Sauerbraten. ..

4. Red Eclipse

Red Eclipse is a new game that reimagines the gameplay of the original Sauerbraten. You still have the in-game level editor, but Red Eclipse offers improved visuals and a closer feel to Quake III Arena. The developers specifically describe it as an “Arena shooter featuring parkour.” So if that sounds appealing to you, give Red Eclipse a try.

5. SuperTuxCart

Mario Kart is a popular video game franchise that has been ported to many other platforms. However, there is an Open Source version of the game that is just as fun and challenging. ..

Linux mascot Tux is joining other mascots in the game’s Mascot Kingdom setting. There’s a whole story about a villain named Nolok and many different characters, each representing an Open Source project. ..

SuperTuxCart is a new Mario Kart clone that’s worth playing for those who are familiar with the series.

6. Cataclysm: Dark Days Ahead

Cataclysm is a post-apocalyptic roguelike game where you must scavenge for food, water, and weapons in order to survive. The game features procedurally generated levels that change with every playthrough, making it a unique experience for each player. ..

Despite the many challenges you face, your determination and perseverance may just help you make it through another turn. The graphics are basic, but the story’s depth pales even the biggest-budget titles. ..

7. FreeOrion

Master of Orion and its sequel are one of the best strategy games ever made. To this day, they remain amazing games that you can still buy on GoG.com!

FreeOrion is a new space strategy game that takes the classic formula and builds on it to create an even more immersive experience. As the leader of an alien race, you must explore the galaxy, improve your economy and technology, and conquer planets in order to expand your empire. ..

The diplomacy options in FreeOrion are still basic, but in time it might equal other 4X games. However, you should have no qualms booting up this epic space title unless you wanted to be a complete pacifist.

8. FlightGear

Microsoft Flight Simulator is a great game for those who want to experience the thrill of air travel. However, if you’re looking for a more in-depth flight simulator, then FlightGear is the perfect choice. The community has been working hard to improve the model and add more aircraft and other content.

This is a flight simulator that you can enjoy if you’re a fan of the genre.

9. Pioneer

Elite was a game that changed the way we thought about space exploration. It was an innovative title that introduced players to new ways to play the game and explore the universe.

In Elite Dangerous, players explore a vast and dangerous universe filled with planets, stars, and creatures. The game is still one of the most popular on the market, and it’s easy to see why. It’s an exciting game that offers a lot of variety and excitement. However, some people still consider Frontier: Elite II to be the best title in the series.

Pioneer is inspired by the game “Lightning” and aims to reproduce the same lightning in a free and Open Source form.

Pioneer is a space flight simulator that uses accurate space flight physics. It also uses basic atmospheric drag physics when you land on a planet. While not nearly as beautiful as Elite Dangerous, Pioneer is pleasing to the eye in its own right.

10. FreeCiv

We love the latest Civ games, but FreeCiv does bring some of that old-school charm back for one more turn. Okay, maybe just one more. The Civilization series is a beloved genre that has been around for decades, but some people feel that the modern games have strayed a little too far from what made the original games so compelling. We love the latest Civ games, but we’re not sure that FreeCiv is doing enough to keep those old-school feelings alive.

There are a few open-source video games that we didn’t mention here, so feel free to let us know in the comments! ..