Single-player games like Underworld Ascendant
Below are 16 single-player Steam games similar to Underworld Ascendant, 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 Underworld Ascendant page.
Ranked picks
- 1
The Adventures of Sir Kicksalot
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares Action and RPG with Underworld Ascendant.
A first-person action game, inspired by Dark Messiah, that provides various ways for defeating your foes, with weaponry, sorcery, stealth, or clever tactics like kicking them into deadly spikes.
- 2
Deus Ex: Human Revolution - Director's Cut
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares Action and RPG with Underworld Ascendant.
You play Adam Jensen, an ex-SWAT specialist who's been handpicked to oversee the defensive needs of one of America's most experimental biotechnology firms. Your job is to safeguard company secrets, but when a black ops team breaks in and kills the very scientists you were hired to protect, everything you thought you knew about your job...
- 3
Vaporum
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares Action and Indie with Underworld Ascendant.
Vaporum is a grid-based dungeon crawler RPG in an original steampunk setting, inspired by old-school classics of the genre. Stranded in the middle of an ocean, in front of a gigantic tower, the hero has to find out what the place is, what happened there, and most importantly, who he is.
- 4
Ctrl Alt Ego
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares Action and Indie with Underworld Ascendant.
Innovative genre mashup (first-person immersive sim puzzler FPS RPG) with emphasis on problem-solving and creativity. Unique vibes and original mechanics that you won't have experienced before. One of the best games of 2022 according to various credible sources!
- 5
Shadows of Doubt
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares Action and Indie with Underworld Ascendant.
Take on the role of a private investigator in this immersive detective simulator. Solve murders and other crimes in a procedurally generated and persistent city where every NPC lives and breathes their own independent lives. Find the killer quickly… or they will kill again!
- 6
Arx Fatalis
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares RPG with Underworld Ascendant.
This critically acclaimed first-person RPG from Arkane Studios takes the player on an amazing journey into the fantasy world of Arx. Arx is wrought with turmoil, brought to the brink of destruction by a violent war.
- 7
Blood West
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares Action and Indie with Underworld Ascendant.
Weird west legends meet eldritch horror in BLOOD WEST, an immersive stealth FPS. Become the Undead Gunslinger, doomed to roam the barren lands until he manages to purge their curse, freeing his soul. 3 varied scenarios, perk-based character progression, and 20+ hours of gameplay await you!
- 8
Thief Gold
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares Action with Underworld Ascendant.
Stalk your prey on the quest for stolen goods with your blackjack, sword, and an assortment of unique arrows. Steal for money and uncover the hidden agendas of your allies and enemies as you play through an unravelling story of deception and revenge.
- 9
Thief
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares Action and Adventure with Underworld Ascendant.
Garrett, the Master Thief, steps out of the shadows into the City. In this treacherous place, where the Baron’s Watch spreads a rising tide of fear and oppression, his skills are the only things he can trust. Even the most cautious citizens and their best-guarded possessions are not safe from his reach.
- 10
Underworld
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares Action and RPG with Underworld Ascendant.
Underworld is a classic old-school ARPG in a demonic environment. You must fight demonic skeletons, upgrade your inventory runes, and learn new abilities.
- 11
System Shock
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares Action and Adventure with Underworld Ascendant.
A first-person fight to the death in the depths of space!
- 12
Deus Ex: Game of the Year Edition
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares Action with Underworld Ascendant.
The year is 2052 and the world is a dangerous and chaotic place. Terrorists operate openly - killing thousands; drugs, disease and pollution kill even more. The world's economies are close to collapse and the gap between the insanely wealthy and the desperately poor grows ever wider.
- 13
Dark Messiah of Might & Magic
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares Action and RPG with Underworld Ascendant.
Discover a new breed of Action-RPG game powered by an enhanced version of the Source™ Engine by Valve. Set in the Might & Magic® universe, players will experience ferocious combat in a dark and immersive fantasy environment. Swords, Stealth, Sorcery. Choose your way to kill.
- 14
System Shock 2: 25th Anniversary Remaster
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares Action and Adventure with Underworld Ascendant.
System Shock® 2: 25th Anniversary Remaster is a genre defining experience that established innovative game-play mechanics that are a staple of the FPS and RPG genre today. Survive the wretched corridors of the Von Braun. Your training has prepared you for this.
- 15
Arcis Ultima
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares Action and Indie with Underworld Ascendant.
Player finds himself in the war between human race and the invading creatures. You must train yourself, get the very best equipment, recall your past and help human efforts. Otherwise; as the time passes, you may find yourself in a hopeless situation.
- 16
Thick As Thieves
Single-player alternative to Underworld Ascendant — playable solo, no multiplayer required. Shares Action and Indie with Underworld Ascendant.
Thick as Thieves is a stealth-action heist game, playable solo or with a partner in crime in co-op multiplayer. Master the art of thievery through cunning gameplay across a 4-hour campaign in this dynamic new take on stealth.