Requiem: Desiderium Mortis

Live

ActionAdventureRPGMMORPGCasual and puzzle

Platforms
Release:: 2015
Developer:: Gravity Interactive, Inc.
Scale:: Average concurrent players12
Player rating:: 67.5% · 981
Profile data as of:: September 2, 2026

Requiem: Desiderium Mortis is a Free-to-Play MMORPG set in a dark distant world where an event known as the "Thanatos Incident" rendered the world almost unlivable. Create your own biological weapon known as a Temperion and experience the horrors that grip Ethergia.

Official website

Screenshots

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Videos

Videos from the game’s source page, in source order. Select one to open the original.

Requiem: Rise of the ReaverNot specified

Overview

Franchise: Unknown
Release date: Windows — March 4, 2015
Developer: Gravity Interactive, Inc.
Publisher: Gravity Interactive, Inc.
Age rating: ESRB M — Mature 17+ · Steam Store
ClassInd 18 — Ages 18+ · Steam Store
Content warnings: Nudity or sexual contentFrequent violence or goreMature content
Interaction modes: Multiplayer
Session capacity: Unknown
Access model: Free to play
Monetization: Unknown
Storefront price: Unknown
Store contents: Unknown
Languages: English

Classification

Genres: ActionAdventureRPGMMORPGCasual and puzzle
Evidence:
Setting and subject matter: Horror
Camera: Unknown
Visual style: Unknown
Combat system type: Unknown

Scale

Concurrent players · period average

August 16, 2026 — September 15, 2026

under 100over 1 million

Detailed value: 12.33
Coverage: Steam
Origin: Published by source
Confidence: Medium — The site's calculation method is not published
Basis: Average concurrent Steam players over 30 days from Steam Charts: 12
Date observed: September 15, 2026
Source: Steam Charts

Concurrent players · period peak

August 16, 2026 — September 15, 2026

under 100over 1 million

Coverage: Steam
Origin: Published by source
Confidence: Medium — The site's calculation method is not published
Basis: Peak concurrent Steam players over 30 days from Steam Charts: 26
Date observed: September 15, 2026
Source: Steam Charts

Ratings: players67.5% · 981Steam, US storefront · Steam reviews
Last update: July 27, 2022 — Requiem: Desiderium Mortis Registrations Now Open (0 updates over 90 days) · Steam update feed

Concurrent players

period average · March 2015 — August 2026 · Steam · published by source · Steam Charts

1370

March 2015August 2026

Change over period: −91%decrease from 137 (March 2015) to 12 (August 2026)
Gaps: No data for 2 months: February 2022 — March 2022
No data for 1 month: May 2022
Observations: 135

Mechanics

Key game systems from the Mechanics Catalog. Assessment axes are independent and are not combined into a single score. An unassessed mechanic is unknown, not absent.

Clan system
Not assessed
A persistent player organization created or recognized by the game itself, with a stable membership, a life beyond one session, a shared identity, functions, and goals.
Player economy
Not assessed
An in-game system where player decisions materially influence at least part of the production, supply, distribution, or price of in-game value.
Territory control
Not assessed
A system where players or organizations capture, hold, and use parts of the game world with lasting consequences.
Competitive PvP
Not assessed
Structured competition between players with rules and a measurable outcome, usually including skill-based matchmaking.
Live service and updates
Not assessed
A regular rhythm of meaningful updates, including seasons, patches, events, and a roadmap that supports a long product life.
Character progression
Not assessed
A system for long-term character or account development through levels, skills, equipment, and specializations.