Single-player games like Nightmare Reaper
Below are 17 single-player Steam games similar to Nightmare Reaper, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Nightmare Reaper page.
Ranked picks
- 1
Ion Fury
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action and Indie with Nightmare Reaper.
3D Realms, creators of Duke Nukem 3D, Prey, and Max Payne, team up with Voidpoint to bring back the legendary Build Engine, famous for classic shooters like Duke Nukem 3D, Shadow Warrior, and Blood. Fast-paced FPS combat across huge, secret-packed levels. Ion Fury is the real deal!
- 2
Prodeus
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action and Indie with Nightmare Reaper.
Prodeus is a first-person shooter of old, re-imagined using modern rendering techniques and technology. Experience the quality you’d expect from a modern AAA game, designed with retro aesthetics and gameplay that invoke the tech-imposed limits of older hardware.
- 3
Dread Templar
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action and Indie with Nightmare Reaper.
Dread Templar is a fast-paced hardcore old-school FPS, combining classic 90s shooter and modern FPS elements. Unlock and combine dozens of weapon upgrades and skills, embrace the Dread Force and obliterate hordes of fiendish enemies. Become the scariest thing in hell and get your revenge!
- 4
DUSK
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action and Indie with Nightmare Reaper.
Battle through an onslaught of mystical backwater cultists, possessed militants & even darker forces as you attempt to discover just what lurks beneath the Earth in this retro FPS inspired by the '90s legends.
- 5
Project Warlock
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action and Indie with Nightmare Reaper.
Project Warlock is a first-person shooter that fans of Doom, Hexen, and Wolfenstein cannot miss. It serves you an exploding cocktail of bullets, spells, and monsters. Battle through 60 levels of non-stop action, packed with bloodthirsty enemies and challenging bosses.
- 6
CULTIC
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action and Indie with Nightmare Reaper.
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.
- 7
Warhammer 40,000: Boltgun
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action and Indie with Nightmare Reaper.
Load up your Boltgun and unleash the awesome Space Marine arsenal to blast your way through an explosion of sprites, pixels and blood in a perfect blend of Warhammer 40,000, frenetic gameplay and the stylish visuals of 90’s retro shooters.
- 8
MOTHERGUNSHIP
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action and Indie with Nightmare Reaper.
MOTHERGUNSHIP is a bullet-hell FPS where you craft your own guns, fight gigantic bosses, and defeat a robotic alien armada that conquered Earth. Face off against overwhelming odds in brutal, non-stop combats where thinking on your feet is the only way to survive.
- 9
Return to Castle Wolfenstein
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action with Nightmare Reaper.
World War II rages and nations fall. The Nazis are twisting science and the occult into an army capable of annihilating the Allies once and for all. As US Army Ranger William “B.J.” Blazkowicz, pierce the black heart of the Third Reich and stop them...or die trying.
- 10
Rise of the Triad
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action with Nightmare Reaper.
Apogee Software and Interceptor Entertainment proudly present the rebirth of the cult-classic first-person shooter, “Rise of the Triad”. Bigger, better and more ludicrous than ever before.
- 11
Wolfenstein 3D
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action with Nightmare Reaper.
World War II rages. The Nazis are planning to build an unstoppable, mutant army. On a mission to steal the secret plans, you were captured and imprisoned. Now, a lucky break gives you the chance to escape, but a maze of passages and trigger-happy Nazis stand in your way.
- 12
Unreal Tournament 2004: Editor's Choice Edition
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action with Nightmare Reaper.
Unreal Tournament 2004 is a multiplayer first person shooter that combines the kill-or-be-killed experience of gladiatorial combat with cutting-edge technology. Ten game modes - both team-based and "every man for himself" -- provide even the most hardcore gamer with palm-sweating challenges through unbelievably detailed indoor...
- 13
Borderlands 2
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action with Nightmare Reaper.
The Ultimate Vault Hunter’s Upgrade lets you get the most out of the Borderlands 2 experience.
- 14
Turok
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action with Nightmare Reaper.
A world where time has no meaning - and evil knows no bounds. Torn from a world long gone, the time traveling warrior Turok has found himself thrust into a savage land torn by conflict.
- 15
DOOM Eternal
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action with Nightmare Reaper.
Hell’s armies have invaded Earth. Become the Slayer in an epic single-player campaign to conquer demons across dimensions and stop the final destruction of humanity. The only thing they fear... is you.
- 16
QUAKE Mission Pack 1: Scourge of Armagon
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action with Nightmare Reaper.
After defeating Shub-Niggurath, you arrive back at your home base on Earth, but it's not all blue skies and butterflies. Apparently, not all QUAKE forces have been subdued. Chaos ensues as you blast your way through the QUAKE minions and toward the infested gateway. Your only choice is to find the source of evil and shut it down.
- 17
Mactabilis
Single-player alternative to Nightmare Reaper — playable solo, no multiplayer required. Shares Action and Indie with Nightmare Reaper.
Mactabilis is a modern shooter with rpg elements. Customize your ship, select from a large array of weapons or even create your own with the powerful in-game editor! Blast your way through vibrant, multi-level, adrenaline filled missions in search of loot and power.