Top similar games like Corridor Sigma:

After awakening in an abandoned underground complex destroyed by a failed experiment, you must fight to survive and uncover the truth behind Live-D Corporation. Use your surroundings, manage your resources, and find a way out alive.

A retro first-person shooter inspired by classics of the '90s mixed with a dungeon crawler. Fight your way through randomly-generated levels and uncover the secrets of an abandoned research station for interdimensional travel.

Perilous Warp is a fast-paced indie retro-shooter inspired by the classic 3D-actions. Communication with a distant space colony has been lost, and you bravely step into the teleporter with the desire for glorious adventures. But do not expect to win in a heartbeat!

Nevedomo is a dynamic arena first-person shooter with a Zetlex robot. Future. Two warring factions Bullets and Rockets participate in deadly competitions under the leadership of the Texer Force Corporation in order to capture the world's resources. Have a good fight!

Savage Gears is a violent, single-player alt-history Africa Cold War shooter. Armed with an Iron Fist and an arsenal of devastating weaponry, you play as Ero Lei'Bourne, a S.P.E.A.R. operative, in the middle of a dangerous conspiracy.

Swing, dash, and leap through a relentless storm of bullets and laser beams. Armed with shotguns and explosive firepower, eliminate foes in a thrilling ballet of destruction. Master the power of the grappling hook for unstoppable, spider-like agility. Can you dodge, weave, and strike with precision?

So.... got what it takes to be a X Slayer?!?... 7 weapons, blood and gore, twisted music by Seepage & Psyko Syndikate, and maps where you can blow up everything. its awesome. started making it in 1998 in high school with my friend and now im 37, so i have life experience now.

Flat Mars is a single-player sci-fi horde FPS. Shoot your way through millions of demons and tear through the terrain with an arsenal of futuristic weapons to claim powerful relics.

BRUTAL First Person Shooter focused on action, gore, and exploration. Fueled by adrenaline-pumping trap-metal soundtrack.

2032 is an Indie game with unique features. By 2032, 50% of global vegetation had already been completely consumed by a pest called P-X. A world war arises for basic resources for survival. Spider, a renowned soldier of the armed forces is summoned.

COVEN is a hyper-violent retro FPS where your path of vengeance will take you across time and space. Destroy your enemies and eat their flesh.

Rip out organs and equip them in your own body. Fight biopunk monsters and drugged-up space bandits. You are a Gajeshian Cultist: A near-mythological being built from the bodies of long-dead saints.

Explore the gloomy rooms of a sci-fi base as a doomed marine, the sole survivor of the portal experiment. Save humanity as you did in the 90s with your trusty shotgun, make your way through ominous corridors inhabited by the shadows of sinners and evil spirits.

Hatchpunk is a retro first person shooter with unique visual style. You have a gun in one hand and a chainsaw in other hand. So come out and face the hordes of monsters that have invaded Earth. Use grapple hook for efficient movement. Kill enemies in close combat with chainsaw to regain your health.

You like Sci-Fi games? You like FPS? You like games with secret items, collectables? You like short Indie games? Then you will love this game! The game takes place in a big mothership captured by aliens. Your mission is to kill all the aliens, and blow up the mothership.

A dark retro-FPS born from a solo AI-creation experiment. Blast your way through a vampire-ruled station, slay twisted enemies, and uncover the secrets of the VɅΔ Protocol

Bulletstorm VR is a brutally creative action shooter that puts players in the ass-kicking boots of the hotheaded space mercenary Grayson Hunt as he shoots, kicks, and leashes all he can see across a hostile world in Virtual Reality!

You’re an Operator in a covert underground facility, researching advanced military and alien technology. A routine day takes a sinister turn... Fight hostile creatures, explore alien corridors, and uncover the mystery as you struggle to survive

You are a TEC Engineer from Earth ordered to retrieve and return sensitive data from the TEC Mining Facility on Titan. On arrival, you discover that the facility has been invaded by beings from another realm. Contend with these abominations as you complete your mission and escape Titan.

The invasion has started and the secret military research facility has fallen leaving only chaos. As the only survivor, you must fight your way through the military base against a horde of frantic aliens. A.R.D. is a FREE single-player first-person shooter made by students from Breda University.

Put on your armor, choose a rifle or a shotgun - now you are part of a special forces group. Shoot your way out of a skyscraper full of zombies.

A brutally difficulty nightmare. A rogue detective infiltrates a cult compound to save a kidnapped woman and discovers a dark labyrinth of inhumane experiments and manmade flesh monsters. A tense and unnerving first person survival horror game, with limited resources, exploration and puzzle solving.

Death is only the beginning. Crawl from your grave and gear up to fight your way through the ranks of a mysterious and twisted cult. You, your guns, and your dynamite will have to shoot, slide, blast, duck, dodge, and maybe throw a gib or two to survive in this old-school-inspired shooter.

Explore mysterious counter-zones and brave dangers to discover priceless treasures buried beneath the ruins of Atlantis in Atmospheric First Person Shooter with a fresh graphic style and hand-crafted 2D animation.

A classical FPS based on movement filled with metroidvania elements and power ups to find by exploring the interconnected levels.

Experience the Half-Life™ expansion packs like never before. Operation: Black Mesa features reimaginings of both Half-Life™ Opposing Force and Half-Life™ Blue Shift through two unique campaigns. How will you survive the Black Mesa Incident? It's time to choose.

You are a security officer aboard Helios 2-79A, awakened to find your crew missing and your ship docked inside a mysterious station. Explore eerie environments, search for your team, and uncover the truth in Abandoned, a psychological thriller filled with suspense and unsettling discoveries.

Weave and slide under waves of projectile hazards in this energetic movement shooter. Dispatch hordes of lost and otherworldly foes as you avenge the planet's demise. Creatively utilize flexible movement mechanics to navigate the environment for fluid movement and displacing enemies.