Top similar games like Classic Marathon:

From the team that brought you Aleph One, the classic sci-fi FPS Marathon 2: Durandal from Bungie on Mac revived for modern hardware by the fan community.

From the team that brought you Aleph One, the classic sci-fi FPS Marathon Infinity from Bungie on Mac revived for modern hardware by the fan community.

In the future, humans conquered the stars and colonized other planets. In the bowels of the icy planet, scientists have discovered a natural and safe source of energy. But at the same time, they awakened an ancient alien life form. There is a conflict on the planet. Volunteers come to the rescue.

This HEART-POUNDING WAVE-BASED ARENA SHOOTER catapults you into an alien-infested space station. SHOOT, SHRED, and SURVIVE as you crush enemy hordes, dodge chaos, and challenge yourself to set a new record. The battle escalates with every second—GET IN THERE and FIGHT!

The Alien Weapon Test Grounds is an Arena FPS where you use powerful alien-made weapon to survive relentless waves of robots. Sharpen your shooting skills in dynamic arenas, ranging from ancient ruins to otherworldly environments, and experience stunning, immersive graphics.

Relentless Frontier is a fast paced sci-fi FPS running on the GZDoom Engine, with a strong focus on mobility, strategy, and exploration. Use your Omnistruct to replicate new weapons and abilities to help you traverse the terrain and demolish threats, while escaping from Ross 128-b in one piece.

From one of gaming's most iconic sagas, Halo is bigger than ever. Featuring an expansive open-world campaign and a dynamic free to play multiplayer experience. 

Silica blends FPS and RTS in epic, photorealistic battles. Choose to fight on the ground or command from above as humans or aliens. Dive into thrilling multiplayer combat or master strategic command. Are you ready to survive and conquer?

Become one of the Hunters in Astro Hunters VR - PvPvE extraction shooter set in space. Explore a unique planet, fight with different enemies, craft, gather resources, and upgrade your weapons. But remember there are also other hunters on the planet. Will you ally, fight, or betray - it's up to you!

EXIMIUS is a FPS/RTS hybrid that focuses on squad-based combat. The game features an intense 5v5 multiplayer experience with each team comprising of 4 Squad Officers and one Commander.

First-person mod of the Unreal Engine Lyra starter project

In MECHWARRIOR 5: CLANS, players become new Smoke Jaguar pilots in the Clan Invasion of the Inner Sphere. Lead a five-mech "Star" squad across diverse planets, engaging in an expansive campaign with immersive gameplay and intricate combat. Customize BattleMechs and explore strategic options.

Experience the next generation of VR combat with Evasion, an intense sci-fi bullet-hell shooter. Play solo or team up with a friend as you run, dodge, and unleash devastating Surge Attacks as you fight your way through an action-packed story campaign.

Enter the sci-fi clash of this hide-and-seek game. Play as one of four mighty Hunters armed with high-tech gadgets to track down elusive Slugs. Or slip into the slimy skin of up to twelve Slugs, mastering sneaky and ingenious abilities, while hiding by morphing into various objects.

Astral Horizon is a first-person space opera adventure featuring combat with six degrees of freedom. Give orders to your squadmates and find creative ways to approach combat in zero-gravity. Explore epic sci-fi locations as you fight a war to uncover a perspective-shattering discovery.

A fast-paced VR arcade shooter, where you fire guns, shoot energy bows, and toss explosive spears to defend your base from an alien infestation. The bugs shoot back, so don't forget to duck!

Try this fast-paced sci-fi shooter as an elite OVERGUN mercenary. Go to the moon base of the EARTH ROBOTICS corporation to destroy an army of various robots under the command of an evil AI.

Universe 51: Tannhäuser Wars is a free-to-play fast-paced multiplayer FPS, taking inspiration from games like DOOM and Quake. In Tannhäuser Wars, two unfamiliar groups are mysteriously teleported to the same location. Since communication between them is impossible or undesirable, they clash!

EVE Vanguard is the online sci-fi sandbox FPS set in the EVE Universe, taking place 21,000 years in the future on far-flung worlds across the star cluster of New Eden, in which decisions have consequences and loss has meaning.

Fight for survival! Industrial waste has disturbed the dangerous Kaeru-tori's habitat, forcing them into the city. Unlock new areas, purchase weapons and upgrades to grow stronger, and fight off the horde with your friends!

Jump, slide and shoot! Kill a player or wipe the entire enemy team with your one-shot-no-scope-super-laser-aiming skills and use gadgets to your advantage, in a 4v4 arena shooter with dynamic game modes and fast paced movement mechanics. May the better team win!

Space bounty hunter Falco must explore the solar system in search of his ex-girlfriend and destroy the Black Star cult. Collect bounties, upgrade your equipment, explore planets, crack wise & fight aliens in this GZDoom-powered Retro-FPS adventure.

First / third person multiplayer shooter with single and multiplayer AI bots and monster, premade and procedural environments.

ZombCube is a first-person, cross-platform, zombie survival, wave based game. Play solo or with friends all over the world destroying the evil ZombCube's. Use teamwork, leadership, and skills to be the best and rank on the leaderboards.

Join Operation Space Force, a free-to-play team-based shooter that takes place in space. Explore weapon customization and different heroes, your base, fight against enemies, and experience different game modes.

Starship Troopers: Extermination is a 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!

Call of Duty®: Advanced Warfare envisions a powerful future, where both technology and tactics have evolved to usher in a new era of combat for the franchise.Power Changes Everything.

Planet Collectors: Episode Earth is an intense fps shooter game with as much as possible realistic feeling to it. Your goal is collecting enough credits to escape from the map. It is a multiplayer game with 6 players maximum and you can work with other players or betray them, that is up to you.

Project NOVA is a hyper-fast, chaotic shooter inspired by ULTRAKILL, DOOM, and REAVER. Dive into relentless multiplayer battles with dynamic weapon mechanics, tech-fueled movement, and diverse game modes. Master the chaos, never stop moving, and unleash unparalleled fun on the battlefield!

Bullet speed is a lightning fast paced arena shooter seeing blood fueled robotic avatars cracked on adrenaline shooting each other. Move fast. Kill with style. Repeat.

Dive into Rise of the Vanguard! Team up with up to 7 players in thrilling PvE missions, where every challenge is unique thanks to our Dynamic Mission Generation system. Choose your class, battle fierce foes, and join scheduled playtests now! Are you ready to rise?