The Game Census
Radium cover art

Radium

Lukas Jaeckel · Develobster · 2015-03-13

Steam

ActionCasualIndie

Modes: Single player

Releases: Mar 13, 2015 (Mac), Mar 13, 2015 (PC (Microsoft Windows)), Mar 13, 2015 (Linux)

Radium is a minimalist and physics-based skill game, featuring unique game controls.

Radium is an Action, Casual, Indie game priced at $0.99 and released in 2015, with 20,000 to 50,000 owners and a Very Positive review sentiment (80% of 162 reviews).

0
playing now
80%
positive of 162 reviews
Very Positive
steam's rating (official)
20,000–50,000
owners (SteamSpy est.)
70/100
IGDB user rating (0 ratings)
Unknown
Steam Deck (Valve)
SteamOS: 0
$0.99
steam price (US)

0 players in-game as of 2026-10-14 07:00 UTC (census sample)

Health check

Quiet
  • · 0 players in-game at the last census sample.
  • · 10 reviews in the last 8 weeks (~1/week).
  • · Review velocity up 67% vs the prior 8 weeks.
  • · Top 32% of 27,701 Action games in the census by review count.

Health tier since 2026-09-01

Estimated sales: 4.0k–9.7k copies

Review-multiple estimate from 162 total reviews — how this is computed.

All-time low: $0.49 at Steam (2026-04-12) · bundled 8×via IsThereAnyDeal

12-month high $0.99 · on sale 1 of 2 observed days (census price snapshots)

Review momentum

PositiveNegative
121220152026Week of 2015-03-01: 3 positiveWeek of 2015-04-01: 1 positiveWeek of 2015-06-01: 1 positiveWeek of 2015-07-01: 1 positiveWeek of 2015-08-01: 1 positiveWeek of 2015-12-01: 11 positiveWeek of 2016-01-01: 3 positiveWeek of 2016-02-01: 12 positiveWeek of 2016-02-01: 4 negativeWeek of 2016-03-01: 8 positiveWeek of 2016-03-01: 1 negativeWeek of 2016-04-01: 3 positiveWeek of 2016-04-01: 1 negativeWeek of 2016-05-01: 2 positiveWeek of 2016-05-01: 2 negativeWeek of 2016-06-01: 3 positiveWeek of 2016-07-01: 2 positiveWeek of 2016-07-01: 2 negativeWeek of 2016-08-01: 2 positiveWeek of 2016-09-01: 3 positiveWeek of 2016-10-01: 3 positiveWeek of 2016-10-01: 1 negativeWeek of 2016-11-01: 1 positiveWeek of 2016-12-01: 1 negativeWeek of 2017-01-01: 5 positiveWeek of 2017-02-01: 1 positiveWeek of 2017-03-01: 1 negativeWeek of 2017-04-01: 1 positiveWeek of 2017-06-01: 3 positiveWeek of 2017-06-01: 1 negativeWeek of 2017-07-01: 1 positiveWeek of 2017-10-01: 1 positiveWeek of 2017-11-01: 1 positiveWeek of 2018-02-01: 1 positiveWeek of 2018-03-01: 1 positiveWeek of 2018-07-01: 1 positiveWeek of 2018-07-01: 2 negativeWeek of 2018-10-01: 1 positiveWeek of 2018-11-01: 1 positiveWeek of 2018-11-01: 1 negativeWeek of 2019-03-01: 1 positiveWeek of 2019-03-01: 1 negativeWeek of 2019-06-01: 1 positiveWeek of 2019-07-01: 1 positiveWeek of 2019-07-01: 1 negativeWeek of 2019-08-01: 1 negativeWeek of 2020-06-01: 1 positiveWeek of 2021-01-01: 1 positiveWeek of 2021-12-01: 1 positiveWeek of 2022-10-01: 1 positiveWeek of 2023-04-01: 1 positiveWeek of 2023-08-01: 1 negativeWeek of 2023-11-01: 2 positiveWeek of 2024-12-01: 1 negativeWeek of 2025-01-01: 2 positiveWeek of 2025-05-01: 1 positiveWeek of 2025-08-01: 1 positiveWeek of 2026-01-01: 1 positiveWeek of 2026-04-01: 1 positiveWeek of 2026-05-01: 1 positiveWeek of 2026-07-01: 1 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

102026-09-15 08:00 — 0 players2026-09-16 16:00 — 0 players2026-09-18 00:00 — 0 players2026-09-19 07:00 — 0 players2026-09-20 15:00 — 0 players2026-09-21 23:00 — 1 players2026-09-23 06:00 — 0 players2026-09-24 14:00 — 0 players2026-09-25 21:00 — 0 players2026-09-27 05:00 — 0 players2026-09-28 12:00 — 0 players2026-09-29 20:00 — 0 players2026-10-01 03:00 — 0 players2026-10-02 11:00 — 0 players2026-10-03 19:00 — 0 players2026-10-05 03:00 — 0 players2026-10-06 10:00 — 0 players2026-10-07 18:00 — 0 players2026-10-09 01:00 — 1 players2026-10-10 09:00 — 0 players2026-10-11 16:00 — 0 players2026-10-13 00:00 — 0 players2026-10-14 07:00 — 0 players
Concurrent players, hourly average, last 30 days (census samples).

Price history

$5.99$0.492015-01-012026-04-262015-01-01 — best price $2.992015-03-20 — best price $5.992015-05-25 — best price $4.992015-08-02 — best price $4.992015-12-01 — best price $4.992016-01-04 — best price $4.992016-02-27 — best price $4.992016-06-23 — best price $0.592016-09-26 — best price $2.992016-11-29 — best price $2.992017-01-17 — best price $2.992017-04-03 — best price $2.992017-06-12 — best price $2.992017-08-22 — best price $2.992017-11-15 — best price $2.992018-01-04 — best price $2.992018-02-19 — best price $2.992018-07-05 — best price $2.992018-11-01 — best price $2.992019-01-03 — best price $2.992019-02-12 — best price $2.992019-07-09 — best price $2.992019-12-03 — best price $2.992020-06-04 — best price $2.992020-09-22 — best price $2.992023-01-05 — best price $2.992023-03-23 — best price $2.992024-07-11 — best price $2.992024-12-28 — best price $0.662025-03-13 — best price $0.662025-06-27 — best price $0.662026-04-26 — best price $0.99
Lowest recorded price across tracked stores, per day (census snapshots).

Completion

20
achievements tracked
14.1%
earned "Radium"
4.5%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsmacOSLinuxSingle-playerSteam AchievementsSteam Trading CardsPartial Controller SupportFamily Sharing

1 supported languages: English

Player tags

IndieActionCasualSurrealDifficultMinimalist

Census log

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

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Similarity via IGDB.