⚜ SteamCozy

Home / Games / Underworld Ascendant

Underworld Ascendant

Underworld Ascendant

From the creative minds behind the System Shock, Thief and Underworld® series. Enter The Stygian Abyss, a dangerous, highly interactive dungeon world. Mix and match dozens of combat, stealth and magic skills to develop your own unique style of play. Become The Ascendant.

Released Nov 15, 2018 Developer OtherSide Entertainment Publisher 505 Games Platforms Windows · Mac · Linux RPGImmersive SimActionAdventureIndie
View on Steam ↗ $29.99 (US · as of 2026-07-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.

34.6%positive1,077 reviews
Recommended · 4 found this helpful

“Underworld Ascendant is an ambitious attempt to resurrect the design philosophy of classic immersive simulations, aiming to give players a high degree of freedom within a reactive, system-driven world. Developed by OtherSide Entertainment and published by 505 Games, it draws…”

— a player, Steam review · 13 hrs played
Not recommended · 0 found this helpful

“I’ve always been a huge fan of the Ultima series. Although I haven’t completed every installment, I’ve played most of them extensively. So when I first heard about Ultima Ascendant, it immediately caught my attention. After reading a few reviews mentioning technical issues, I…”

— a player, Steam review · 6 hrs played
Not recommended · 0 found this helpful

“id be mad if i paid more than 2 dollars for this. good bones but needs major refinement.”

— a player, Steam review · 0 hrs played
Read more reviews ↗

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-07-25.

45achievements
2.3%median completion
0.4%rarest: Undetected Distraction
71.2% of players 53.4% of players 48.2% of players 26.8% of players 20.1% of players 17.4% of players 16.4% of players 12.5% of players 10.4% of players 10.1% of players 8.6% of players 7.8% of players 7.6% of players 5.6% of players 4.9% of players 4.0% of players 3.7% of players 3.1% of players 2.9% of players 2.8% of players 2.8% of players 2.6% of players 2.3% of players 2.2% of players 2.1% of players 1.9% of players 1.9% of players 1.7% of players 1.6% of players 1.6% of players 1.4% of players 1.2% of players 1.1% of players 0.8% of players 0.7% of players 0.7% of players 0.7% of players 0.7% of players 0.5% of players 0.5% of players 0.5% of players 0.4% of players 0.4% of players 0.4% of players 0.4% of players 71.2% 0% most earned rarest
Almost everyone has
71.2%Hard To Reach — Hidden achievement
53.4%Cautious First Steps — Hidden achievement
48.2%Untouchable Assassin — Hidden achievement
Rarest badges of honor
0.4%Undetected Distraction — Hidden achievement
0.4%Box Master — Hidden achievement
0.4%Diverting Behavior — Hidden achievement

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-25. Steam prices vary by region — always confirm your local price on Steam.

$29.99current · sampled 2026-07-26 08:39 UTC
$29.99lowest since tracking began2026-07-25
US29.99 USD
EU29.99 EUR
UK24.99 GBP
Australia42.95 AUD
Canada33.99 CAD
Japan3,090 JPY
Brazil57.99 BRL
China88.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

Brazil≈$11 China Japan Canada US Australia UK EU≈$34

Cheapest → most expensive, converted to USD at ECB reference rates (2026-07-24). Relative comparison only.

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Aug 27, 2019
Hotfix Notes 4.3

https://steamcdn-a.akamaihd.net/steamcommunity/public/images/clans/30367253/dedb8c8ac1d9a8261c6c63c01e024f393962d578.jpg Hotfix Notes 4.3 - Fixed the brightness slider. On new and old saves, you may n

Aug 19, 2019
Hotfix Notes 4.2

https://steamcdn-a.akamaihd.net/steamcommunity/public/images/clans/30367253/dedb8c8ac1d9a8261c6c63c01e024f393962d578.jpg Hotfix Notes 4.2 * Underworld Ascendant is finally available on Mac and Linux!

Jul 02, 2019
Update 4 - Hotfix Notes

Update 4 Hotfix Build Notes https://steamcdn-a.akamaihd.net/steamcommunity/public/images/clans/30367253/dedb8c8ac1d9a8261c6c63c01e024f393962d578.jpg Hi all, We've just released a 1.5GB hotfix for Upda

Jun 18, 2019
Update 4 Build Notes

https://steamcdn-a.akamaihd.net/steamcommunity/public/images/clans/30367253/b20c2da56810b42e2d988fedfa494cdb97a88f9b.jpg Update 4 includes more new content, tuning improvements, and fixes. We hope you

May 02, 2019
Hotfix for Update 3

https://steamcdn-a.akamaihd.net/steamcommunity/public/images/clans/30367253/dedb8c8ac1d9a8261c6c63c01e024f393962d578.jpg Greetings all! We have a small (~30mb) hotfix that addresses crash bugs that a

Games like Underworld Ascendant

From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.

Arx Fatalis Arx Fatalis 85.4% · 1,318 reviews shares Stealth, Dungeon Crawler, Immersive Sim, Fantasy Thief Simulator Thief Simulator 88.1% · 11,932 reviews shares Stealth, Immersive Sim, Sandbox, First Person Shadows of Doubt Shadows of Doubt 81.1% · 12,502 reviews shares Stealth, Immersive Sim, Sandbox, First Person Ctrl Alt Ego Ctrl Alt Ego 92.6% · 673 reviews shares Stealth, Immersive Sim, Sandbox, First Person Skin Deep Skin Deep 95.2% · 1,425 reviews shares Stealth, Immersive Sim, Sandbox, First Person Thief: Deadly Shadows Thief: Deadly Shadows 81.0% · 1,733 reviews shares Stealth, Immersive Sim, Fantasy, First Person Dishonored Dishonored 97.5% · 49,534 reviews shares Stealth, Immersive Sim, Fantasy, First Person E.Y.E: Divine Cybermancy E.Y.E: Divine Cybermancy 86.0% · 6,226 reviews shares Stealth, Immersive Sim, First Person, RPG

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-20.

GenresAction, Adventure, Indie, RPG
Player tagsRPG · Immersive Sim · Action · Adventure · Indie · Dungeon Crawler · Fantasy · Sandbox · First-Person · Stealth · Singleplayer (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Full controller support · Steam Trading Cards · Captions available · Remote Play on TV · Family Sharing
LanguagesEnglish * , French, Italian, German * , Spanish - Spain, Russian, Simplified Chinese, Japanese *
ControllerFull support
Achievements45
Estimated owners20,000 – 50,000 (SteamSpy)
Official sitehttp://www.underworldascendant.com/
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS *: 64-bit Windows 7, 64-bit Windows 8 (8.1) or 64-bit Windows 10 Processor: Intel CPU Core i5-6600 @ 3.3GHz / Ryzen 3 1300X Memory: 8 GB RAM Graphics: Nvidia GPU GeForce GTX 960 (3GB)/ AMD R9 280 (3GB) DirectX: Version 11 Storage: 25 GB available space