Top similar games like Hellstorm: Reign:

ONCE First-Person Adventure is a first-person adventure game set in an alternative post-Soviet space. As a volunteer, you go to conduct an unscheduled inspection of power plant points.

RoundZ is a round-based survival zombie game, with each round becoming progressively harder as the zombies get more health and in bigger waves. 

A secret agent thriller set in a near-future world of spies, technology, and secrets.

A fast-paced FPS about saving the streets from a demonic invasion by fighting through waves of relentless demons with heavy artillery.

After thousands of years of dormancy, embody darkness and crush any resistance that arises in front of you with the help of your primordial powers in this first person shooter.

You are a Test Subject, trapped in Chamber 7, with little chance of escape. You will have to dodge past all the obstacles that are in your way if you would like a chance to escape.

Awake in the chaos you've unleashed, Lena. Wield incredible weapons and powers to face hordes of enemies and execute them to extract their resources. Explore the remnants of humanity on Titan as you uncover the truth about your dark past. Will you choose vengeance, redemption, or death?

Luna Abyss is a single player story driven action-adventure with fluid platforming and bullet hell combat. Follow the journey of Fawkes, a prisoner of Luna caught between a cryptic prophecy and their prison sentence.

if you’re into Doom, Furi \ Titan Souls, this game will fulfill your needs with its FPS, fast-paced gameplay that heavily focuses on Boss fights, each with a unique approach that has its own mechanics, and a load of enemies to unleash your anger and test your arsenal upon.

Enter an immersive sci-fi first-person action experience that will test your abilities and push your limits. Engage in fast-paced combat. Blaze through obstacles. Find the light past the veil. Reveal the secrets of the maze.

Fight against endless hordes of zombies in this action-packed, round-based survival game inspired by classic zombie shooters! Explore diverse maps, upgrade weapons, deploy automatic turrets, and call in airstrikes. Customize your arsenal with attachments and skins. Play online or in split-screen.

Travel through an overgrown megastructure, and discover what lies beyond it. Metal Garden is a short, atmospheric singleplayer FPS game.

Madness of the Science is an FPS game set in a laboratory in 2060. Dr. Huxley, along with his assistant robot named Agent, struggles to stop the dangers of mutated creatures and robots whose artificial intelligence has deteriorated as a result of the explosion.

Alternate history Cold war FPS. Join the Blackwoods unit and unravel a conspiracy which threatens to end your resistance once and for all.

Start your journey as Cyrus to find your sister, Ava in Spring. The first game of The Seasons Collection involves brilliant FPS gameplay with a beautiful story to remember. All you will have is a rifle, a shotgun and limitless enemies as you start discovering the mystery of the forest.

Trapped in Darski High School, you must uncover the secrets of the Sacred Protein while evading threats like Big Marina and battling terrifying teachers. Solve puzzles, manage resources, and face Luli’s revenge in a chilling survival horror adventure with multiple endings. Will you escape?

Rise of the Titan is fast-paced VR action adventure game about a struggling father of two who becomes a gladiator in an all bot battle arena to face off against colossal robots.

Pilot your advanced Trident fighter through a mysterious frontier, where survival hinges on skill, strategy, and an inexplicable alien bond. XERXES:SHADOW - Your mind is the battlefield.

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!

Skylax! The Lab Runner is an FPS game that presents you with tight gameplay and good mechanics. In the game, you can pass levels either by hiding using the invisible mechanic or by fighting against enemies. And after each level you will upgrade your weapons and utilities!

A virus that suddenly appears begins to delete all the software and imprison people's minds on the computer in a simulation world. To get rid of this virus, you must save the world by collecting all the passwords and restarting the system!

Frost League is Dystopian realistic FPS story about criminals of banking experts. Realistic&Cinematic graphics, comic style scenes and more.

Warrior Paint redefines the cinematic intensity and chaos of battle as seen through the eyes of ordinary soldier fighting through epic WWII conflict.

Enter a world full of mystical dangers in the merciless northern Sweden. Uncover the dark secrets of the werewolves as you fight for survival in a relentless open world. Will you solve the puzzle of the beasts and conquer them?

A sci-fi flying person vs. robot battle game. This flyland is a model train layout writ large! But it has been made to be terribly lethal You have to destroy every danger to the refugees! (Come back again, click the arrow button and play trains! Game within the game!)

A sci-fi adventure with shooter and puzzle elements. The game follows the adventures of Shin-kai, a half-divine creature animated by ancient magic in an uncharted and mysterious world. The story begins in 1959 in the Soviet Union, in a place called "the mountain of the dead".