Top similar games like Corridor Sigma:

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!

CyClones is a first-person shooter (FPS) classic from the 90s that challenges players to explore maze-like environments and take down flesh-steel monstrosities using an impressive arsenal of hi-tech weaponry.

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.

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.

A deadly virus, designed to reanimate the dead and integrate them with cybernetic enhancements, escapes containment and turns the facility's inhabitants into relentless, cybernetic zombies.

Sinned Arena is a classic arena shooter inspired by timeless 90s games. You are trapped in Hell with other unfortunate souls, fighting among each other for demons twisted pleasures. Fight for your way out this dark place but beware, demons aren't there just to watch.

Your mission is tough: eliminate 30 furries scattered across a vast woodland. As an elite sniper, you’ll need precision, patience, and perseverance to track them down and complete your task.

Uploaded is a fast-paced, parkour, online multiplayer, and single-player shooter created by only one developer where you play as a robot with a human mind uploaded to it.

Terrorform is a modern take on classic FPS games. Blast your way through a space station and leave a wake of destruction.

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!

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.

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.

Waking Nitemare: A newtro FPS with modern twists. Dash, heal with melee headshots, use bullet time. Face unique bosses, find upgrades. Classic shooter action meets innovative mechanics. For retro fans and newcomers alike.

Nightmare has descended on the starship Starfarer ETOS-1. Battle the hoards, defend the crew, resist the infection and uncover the truth in this first-person Sci-Fi horror shooter, harnessing powers, upgrading weapons, and battling to survive. The voices are calling you. Will you listen?

In a galaxy far away a world is facing doomsday. As nations rise against each other the world is plunged into chaos. Many illegal groups such as gangs and independent militias and demonic cults take the advantage of the situation to expand. Your task is to assassinate a demon dubbed Lord of Terror.

Get into an alternative world in which an unknown catastrophe occurred, which led to the complete disappearance of mankind. Find out the cause of what happened and most importantly, try to survive, because you are far from alone in this world.

Cybershow is a fast-paced first-person sci-fi action shooter. Battle your way out of the city against the local military and police!

It's the year 2052 when you wake up from hyper sleep - but you immediately know there is something wrong. The ship you are in is docked to an abandoned alien space station. You must find the remaining crew members and find out what happened.

Explore a virtual dungeon where each room is an entire game world, each with its own characters, gameplay, and themes. Dive deeper and deeper, unlock more and more worlds, and be the first to reach the Core!

Only Lead Can Stop Them is a retro FPS set in the Spanish Civil War. Fight the Fascist Hordes!

In this game you have to fight your way through hordes of zombies in search of a safe place.

A horror survival game that unfolds in an ancient district of Jeddah, Follow the protagonist as they uncover the mystery of BREEKHA Hospital, where bodies disappear only to return to life in a grotesque and unnatural manner.

The voices in your head keep repeating numbers. You know only one way to make them stop...

Sabotage a cult and their schemes in this Mystery, Horror, FPS. Explore a mansion while massacring the creepy followers and their foul abominations. Find various weapons to slay your enemies with and uncover the cruel secrets of the organization.

Selaco is a brand new original shooter inspired by classics, featuring thrilling action set pieces, destructibility, smart enemies and a fleshed out story taking place within an immersive game world.

Snuff is a retro ego-shooter which was inspired by early 2000 games. You play as Dexter, a programmer and hacker who is hunted by followers of an underground organization. After barely escaping an assassination attempt, you decide to hunt down every single boss of the organisation.

Shrine II is a retro FPS game with a focus on atmosphere and exploration. Explore a nightmarish world and battle great bosses where the surprises never end...

Can you survive in an addicting fusion of rhythm-driven FPS action and captivating dystopian action-packed storytelling? Fight for your life through cutting-edge graphics while the pulsating beats of electronic music get your brain synapses firing at highspeed.

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 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.

Embark on a thrilling journey through the eyes of a security gate officer who must face super-biological horrors beyond both knowledge and comprehension in this first-person shooter styled after old PS2 game graphics.

Castle of Deceit is a first-person shooting battle game that takes place on an alien planet. You will play the leading role in finding the weak truth in the quagmire of lies and make your decision to find your lover.

Enter a realm of nightmares and claw and shoot your way through hordes of bloodthirsty vermin and things that are much, much worse in this retro FPS