Top similar games like Tower Of Osiris:

COLLATERAL is a SCI-FI, FPS-Roguelike. It is a high-octane game with a strong focus on player-choice. You create your builds as you acquire and attach different components to your guns. There are many different worlds to explore, with unique enemies and rewards for each on you visit.

A western / fantasy top down shooter with a loadout system.

A director of a large biomedicine company offers you a great contract to recover two notebooks seized at a military base.

Retro Dungeon Slayer is a retro FPS dungeon crawler where you battle through procedurally generated dungeons filled with monsters. Wield swords, discover powerful upgrades, and fight for survival against waves of deadly creatures!

ANARCHY is an escape / survivor games. Horde of robots, climbing, traps and many other things will try to kill you. It is one of the toughest games on steam right now.

Using the musket of Captain Davy Jones, you’ll need to kill as many enemy pirates as possible in order to achieve a high score and earn your title as Pirate Lord of the Seven Seas. Be careful though. Your enemies will grow angrier the more you attack them. Be sure to drink more rum and get stronger.

A hardcore tactical shooter, where your main mission is to eliminate any threat blocking your way and escape the enemy lines

Gloomgrave is a roguelike dungeon crawler with a retro pixel aesthetic. Upgrade your Gloomcrawler with unique perks and experiment with different builds as you try to survive each depth in search of the ultimate ancient relic.

Project Dagger is a retro FPS roguelike, where you have to return the lost Crown of Benevolence to the King of Delvia! However, your journey will not be easy as many foes along the way will attempt to kill you! Unlock new weapons, upgrade stats, battle enemies as you make your way through the world!

Single-Player / Action, Parkour, Training Ground

Start as a greenhorn and rise through the ranks in the Uncounted Isle Archipelago. Tackle threats, master your skills, loot & trade and unravel a plot that's bigger than the adventurer guild expected. Grow into the adventurer you're destined to become!

Cryptrunner is a hack and slash shooter with roguelike elements. Enter the Crypt, blast and slash your way through monstrous foes, and delve deep in search of ancient fortunes. Once you enter, there's no turning back. The only way out is found below.

In a deep and dark forest, skeletons rise up and you pick up your gun and start hunting them down to stop it.

Berserk Mode is a visceral time-attack fantasy rogue-lite. Become the Berserker and wade into a dungeon battlefield swarming with monsters. Unleash the absurd power of your Beast in a storm of blood and gibs. Prepare to enter Berserk Mode.

Voxrush is a time survival FPS game with a full destructible voxel environment. Kill monsters, take points, upgrade stats and weapons, use skills and find a better way to survive as long as possible to become the best!

Cleanse the Rogue Dungeon of three Demon Knights as you battle through the depths in this addicting rogue-like dungeon hopper from the creators of Mutant Mudds™ and Xeodrifter™.

A fast-paced, score-attack movement shooter. Mow down an endless horde of robots, flying through hand-crafted arenas at breakneck speeds.

Step into the mystical realm of Arcanora, a rogue-lite magical adventure! where darkness shrouds a labyrinthine world. Battle hordes of ferocious spiders using an arsenal of diverse staffs. How many waves can you endure before the unyielding arachnid surge overwhelms you?

The Goblins have been enslaved too long under the Ratfolk. Now comes the time to strike back and DESTROY them once and for all, but don't get too cocky, there's no telling what they might have in store for you. Use your Goblin Skills and Charm in this Action-Adventure, Roguelite.

Nether Dungeons is an action-packed dungeon crawler. Battle through procedurally generated dungeons, face relentless enemies, and defeat epic bosses. Customize your hero, wield diverse weapons, and survive intense challenges as you descend into ever-changing, dangerous depths.

A Fantasy Rogue-Like game with Paper thin graphics. Cut through waves of enemies and collect their souls to increase your power! Encounter a variety of enemies and events as you make your way through the DARK.

Mancers of Magic is a Spell-based Shooter where you must fight your way through islands of monsters to become the ultimate Mancer!

Holy Shot is a fast-paced, physics-based top-down shooter. Face nasty hordes of monsters in a chaotic environmental destruction, combining powerful weapons and strategic abilities to survive intense battles against challenging bosses.

Endless Firepower puts you behind the trigger of millions of procedurally generated weapons and gives you a reason to use them in this fast-paced action roguelike where everything is generated and you'll never know what or where you'll be fighting next.

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This is a surreal exploration game. Explore a massive fractal with great complexities. You can shrink infinitely to go deeper into the fractal. Or you can become larger by growing. Inner space awaits you in this infinite world.

Prepare for an adrenaline-fueled, intergalactic battle like never before in our intense FPS shooter game! As a brave commander leading your platoon on a critical raid on Nalaxion 54, fate takes a thrilling turn when you accidentally stumble upon a hidden trap door.

Magic in hand and forward. Only you can stop the explosion of dark matter in the universe!

HELLGRINDER is a stylized first-person shooter roguelike game where you battle off against hordes of demons from hell, using a variety of different weapons. Your goal is to stop those pesky demons once and for all, but the adventure won't be easy...