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On Steam, 94% of 14,892 player reviews are positive (Very Positive). 19 people are playing it on Steam right now, with a peak of 71 in the last 30 days. It is Playable on Steam Deck. It was nominated for 1 award.

Mass Effect is an action role-playing game set in the year 2183. The player takes the role of Commander Shepard, a customizable character who serves as Executive Officer aboard the SSV Normandy. After a routine mission goes wrong, Shepard assembles a squad and pursues a threat that escalates into a galaxy-wide conflict. The game features real-time squad-based combat where players choose companions and tactics suited to different enemy types, from biotic-wielding opponents to heavily armored machines. The game spans a large science fiction universe, with explorable locations ranging from the Citadel space station to alien homeworlds and remote outposts. Player decisions affect mission outcomes, crew relationships, and the overarching narrative across the trilogy.

Story

In the year 2183, Commander Shepard is sent to the human colony of Eden Prime to recover a Prothean beacon. The mission is disrupted by an attack from the synthetic Geth, led by Saren Arterius, a rogue Spectre agent. After making contact with the beacon and receiving a cryptic vision of destruction, Shepard is appointed the first human Spectre and tasked with hunting Saren across the galaxy. The investigation leads Shepard and a growing crew aboard the SSV Normandy through multiple worlds, uncovering a conspiracy tied to the Reapers, a highly advanced machine race believed to eradicate all organic civilizations on a 50,000-year cycle. Shepard must stop Saren before he can trigger their return.

What is happening now

Mass Effect is a narrative-driven RPG and shooter that defined a generation of character-focused sci-fi storytelling when it launched in 2007. The original trilogy established the franchise's reputation for branching dialogue, squad-based combat, and consequential player choices across multiple games. Recent coverage has focused on Exodus, a spiritual successor from Wizards of the Coast that draws deliberate inspiration from Mass Effect's formula. Early hands-on impressions suggest the game captures much of what made BioWare's series compelling - a third-person perspective, narrative depth, and RPG mechanics - though some reviewers note that the dialogue execution doesn't quite match the modernization of other systems. The project appears positioned as a spiritual continuation of that lineage rather than a direct sequel.

More in the Mass Effect series

All 6 games in order

From the people behind Mass Effect

shared cast and crew

Games like Mass Effect

same kind of game, other series

Cast and crew

5 credits

Crew

Awards

0 won, 1 more nomination
British Academy Games Awards 2009

Media

Mass Effect screenshot

Releases

Platform
Date
November 20, 2007
November 20, 2007
November 20, 2007

First release date; per-platform dates are not in the database for this game yet.

PC and Steam Deck

Steam store page

Steam Deck: Playable runs, but may need some tweaks

Minimum
Supported OS
Microsoft Windows® XP with SP2 or Windows Vista *
Processor
Intel P4 2.4 Ghz or faster / AMD 2.0 Ghz
Memory
1.0 GB RAM or more (2.0 GB for Vista)
Graphics
DirectX 9.0c compatible, ATI X1300 XT or greater (ATI X1300, X1300 Pro, X1600 Pro, Radeon 2600 HD, and HD 2400 are below minimum system requirements); NVidia GeForce 6800 or greater (7300, 7600 GS, 8500 are below minimum system requirements)
Hard Drive
12.0 GB or more free hard drive space
Sound
DirectX 9.0c compatible
DirectX®
9.0c

Will it run on my PC?

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Requirements and Deck status as listed on Steam, checked Oct 28, 2026.

Mass Effect player count

concurrent players on Steam
19playing now5h ago
34peak today
7130-day peak
71highest we have seenOct 25, 2026
Oct 23: 37 Oct 24: 48 Oct 25: 71 Oct 26: 49 Oct 27: 40 Oct 28: 51 Oct 29: 38 Oct 30: 52 Oct 31: 54 Nov 1: 61 Nov 2: 34
Oct 23daily peak, last 11 daystoday

Players counted on Steam every one to six hours; the daily peak is the highest count of the day.

In the news

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