The Game Census
Sigma Impact cover art

Sigma Impact

John Bishop · 2021-08-11

Steam

ActionIndie

Modes: Single player, Multiplayer, Co-operative

Releases: Aug 11, 2021 (PC (Microsoft Windows))

A physics-based 2D action roguelite set in a dungeon of glass. Master intense combat, be immersed in captivating visuals with adaptive music and sound design tailored to your gameplay.

97%
positive of 102 reviews
Very Positive
steam's rating (official)
0–20,000
owners (SteamSpy est.)
pending
deck/linux tier (ProtonDB)
Verified
Steam Deck (Valve)
SteamOS: Playable
$4.99
steam price (US)

Health check

Quiet
  • · 9 reviews in the last 8 weeks (~1/week).
  • · Review velocity down 18% vs the prior 8 weeks.
  • · Top 40% of 25,734 Action games in the census by review count.
Estimated sales: 2.0k–4.6k copies

Review-multiple estimate from 102 total reviews — how this is computed.

Current store prices

lowest across shops (ITAD)$4.99

Deal snapshots via CheapShark, refreshed daily.

All-time low: $0.89 at Steam (2023-12-22)via IsThereAnyDeal

12-month high $4.99 · on sale 5 of 10 observed days · $4.10 above the all-time low (census price snapshots)

Review momentum

PositiveNegative
171720212026Week of 2021-08-01: 17 positiveWeek of 2021-09-01: 7 positiveWeek of 2021-10-01: 9 positiveWeek of 2021-11-01: 3 positiveWeek of 2021-12-01: 3 positiveWeek of 2022-01-01: 2 positiveWeek of 2022-02-01: 3 positiveWeek of 2022-03-01: 3 positiveWeek of 2022-04-01: 2 positiveWeek of 2022-05-01: 2 positiveWeek of 2022-05-01: 1 negativeWeek of 2022-06-01: 2 positiveWeek of 2022-07-01: 1 positiveWeek of 2022-08-01: 1 positiveWeek of 2022-10-01: 1 positiveWeek of 2022-11-01: 2 positiveWeek of 2022-12-01: 6 positiveWeek of 2023-02-01: 1 positiveWeek of 2023-04-01: 1 positiveWeek of 2023-05-01: 1 positiveWeek of 2023-06-01: 1 positiveWeek of 2023-07-01: 1 positiveWeek of 2023-09-01: 1 positiveWeek of 2023-12-01: 1 negativeWeek of 2024-01-01: 1 positiveWeek of 2024-02-01: 1 positiveWeek of 2024-04-01: 3 positiveWeek of 2024-06-01: 5 positiveWeek of 2024-08-01: 1 positiveWeek of 2024-11-01: 1 negativeWeek of 2024-12-01: 1 positiveWeek of 2025-02-01: 1 negativeWeek of 2025-03-01: 3 positiveWeek of 2025-05-01: 1 positiveWeek of 2025-11-01: 1 positiveWeek of 2026-01-01: 1 positiveWeek of 2026-02-01: 1 positiveWeek of 2026-05-01: 1 positiveWeek of 2026-07-01: 1 positive
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Price history

$4.99$0.892021-08-112026-10-082021-08-11 — best price $2.542021-11-01 — best price $2.992021-12-01 — best price $2.992022-01-05 — best price $2.992022-03-07 — best price $2.992022-05-09 — best price $2.992022-07-07 — best price $2.992022-11-29 — best price $2.992023-01-05 — best price $2.992023-04-30 — best price $2.992023-07-13 — best price $2.992024-01-04 — best price $2.992024-05-13 — best price $2.492024-06-27 — best price $2.492024-11-28 — best price $1.992024-12-19 — best price $3.242025-01-10 — best price $2.892025-03-13 — best price $2.492025-06-28 — best price $1.492025-10-03 — best price $1.492025-10-22 — best price $3.342025-12-18 — best price $1.242026-03-20 — best price $2.392026-06-26 — best price $2.242026-10-02 — best price $2.242026-10-08 — best price $4.99
Lowest recorded price across tracked stores, per day (census snapshots).

Completion

16
achievements tracked
53.3%
earned "Long Throw"
10.6%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsFull controller supportSingle-playerMulti-playerPvPShared/Split Screen PvPCo-opShared/Split Screen Co-opShared/Split ScreenSteam AchievementsFull controller supportSteam Cloud

1 supported languages: English

Player tags

2DPvPActionArcadeLinearColorfulStylizedTop-DownTutorialController

Census log

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

Players also track

Neighbors: Suburban WarfareLost LivesBRUTALISTICK VR

Similarity via IGDB.