The Game Census
Mortal Decay cover art

Mortal Decay

Roger Kaffer · 2020-10-28

Steam

ActionAdventureIndie

Modes: Single player

Releases: Oct 28, 2020 (PC (Microsoft Windows))

You are a veteran, in a post World War 3 apocalyptic world. Starving and alone, you fight to keep your sanity in the hell that this world has decayed into. In a desperate attempt to find food, you stumble your way into an abandoned prison, but you find out it is not as abandoned as you believed...

Mortal Decay is an Action, Adventure, Indie game released in 2020 for $2.99, with an estimated 20,000 .. 50,000 owners and a Very Positive review sentiment (97% of 66 reviews).

0
playing now
97%
positive of 66 reviews
Very Positive
steam's rating (official)
20,000–50,000
owners (SteamSpy est.)
Unknown
Steam Deck (Valve)
SteamOS: 0
$2.99
steam price (US)

0 players in-game as of 2026-10-14 09:00 UTC (census sample)

Health check

Quiet
  • · 0 players in-game at the last census sample.
  • · 11 reviews in the last 8 weeks (~1/week).
  • · Review velocity down 39% vs the prior 8 weeks.
  • · Top 46% of 27,649 Action games in the census by review count.

Health tier since 2026-09-02

Estimated sales: 1.3k–3.0k copies

Review-multiple estimate from 66 total reviews — how this is computed.

All-time low: $0.74 at Steam (2021-06-24)via IsThereAnyDeal

12-month high $2.99 · on sale 1 of 2 observed days (census price snapshots)

Review momentum

PositiveNegative
8820202025Week of 2020-10-01: 6 positiveWeek of 2020-11-01: 8 positiveWeek of 2020-12-01: 2 positiveWeek of 2021-01-01: 1 positiveWeek of 2021-02-01: 1 positiveWeek of 2021-03-01: 7 positiveWeek of 2021-04-01: 5 positiveWeek of 2021-07-01: 1 positiveWeek of 2021-08-01: 1 positiveWeek of 2021-10-01: 4 positiveWeek of 2021-11-01: 3 positiveWeek of 2021-12-01: 2 positiveWeek of 2021-12-01: 1 negativeWeek of 2022-04-01: 1 positiveWeek of 2022-05-01: 2 positiveWeek of 2022-06-01: 2 positiveWeek of 2022-08-01: 1 positiveWeek of 2022-08-01: 1 negativeWeek of 2023-04-01: 1 positiveWeek of 2024-07-01: 1 positiveWeek of 2024-10-01: 1 positiveWeek of 2025-06-01: 1 positiveWeek of 2025-10-01: 1 positiveWeek of 2025-12-01: 1 positive
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

002026-09-15 09:00 — 0 players2026-09-16 18:00 — 0 players2026-09-18 01:00 — 0 players2026-09-19 09:00 — 0 players2026-09-20 16:00 — 0 players2026-09-22 00:00 — 0 players2026-09-23 07:00 — 0 players2026-09-24 15:00 — 0 players2026-09-25 22:00 — 0 players2026-09-27 06:00 — 0 players2026-09-28 13:00 — 0 players2026-09-29 21:00 — 0 players2026-10-01 05:00 — 0 players2026-10-02 12:00 — 0 players2026-10-03 20:00 — 0 players2026-10-05 04:00 — 0 players2026-10-06 11:00 — 0 players2026-10-07 19:00 — 0 players2026-10-09 02:00 — 0 players2026-10-10 10:00 — 0 players2026-10-11 17:00 — 0 players2026-10-13 01:00 — 0 players2026-10-14 09:00 — 0 players
Concurrent players, hourly average, last 30 days (census samples).

Price history

$2.99$0.742020-10-282025-11-122020-10-28 — best price $2.092020-11-04 — best price $2.992020-12-17 — best price $1.492020-12-31 — best price $2.992021-03-04 — best price $0.892021-03-18 — best price $2.992021-04-27 — best price $1.492021-05-11 — best price $2.992021-06-24 — best price $0.742021-07-08 — best price $2.992021-08-17 — best price $1.492021-08-24 — best price $2.992021-10-23 — best price $0.742021-11-06 — best price $2.992021-12-21 — best price $1.492022-01-04 — best price $2.992022-03-07 — best price $0.892022-03-21 — best price $2.992022-04-29 — best price $0.742022-05-13 — best price $2.992022-06-15 — best price $1.492022-06-29 — best price $2.992022-10-25 — best price $0.742022-11-01 — best price $2.992025-10-29 — best price $0.742025-11-12 — best price $2.99
Lowest recorded price across tracked stores, per day (census snapshots).

Completion

8
achievements tracked
75.1%
earned "Starvation"
50.5%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsSingle-playerSteam AchievementsFamily Sharing

1 supported languages: English

Player tags

3DDarkGoreHorrorStealthSurvivalStory RichAtmosphericExplorationFirst-Person

Census log

Computed from census-recorded observations only — dates are observation dates.

Players also track

Wanderlust AdventuresDon't Knock TwiceTanziaDARQ: Complete EditionOmensight: Definitive EditionEternity: The Last UnicornApsulov: End of GodsTorchlight III

Similarity via IGDB.