The Game Census
Terraforming Mars cover art

Terraforming Mars

Artefacts Studio · Twin Sails Interactive · 2018-10-17

SteamGOGEpic Games Store

Strategy

Modes: Single player, Multiplayer, Co-operative

Releases: Dec 03, 2019 (iOS), Oct 17, 2018 (PC (Microsoft Windows)), Oct 17, 2018 (Mac), 2018 (Android)

The taming of the Red Planet has begun! Corporations are competing to transform Mars into a habitable planet by spending vast resources and using innovative technology to raise temperature, create a breathable atmosphere, and make oceans of water.

Terraforming Mars is a 2018 Strategy game priced at $19.99, with Mostly Positive reviews from 71% of 7245 reviews and an estimated 500,000 to 1,000,000 owners.

245
playing now
70%
positive of 7.3k reviews
Mostly Positive
steam's rating (official)
500,000–1,000,000
owners (SteamSpy est.)
0
twitch viewers (latest)
65/100
IGDB user rating (14 ratings)
gold
deck/linux tier (ProtonDB)
Verified
Steam Deck (Valve)
SteamOS: Playable
$19.99
steam price (US)

245 players in-game as of 2026-10-15 03:00 UTC (census sample)

Trailer

Terraforming Mars trailer thumbnail

Terraforming Mars in about 3 minutes

≈429,007 YouTube results for this game's trailer search

Health check

Healthy
  • · 245 players in-game at the last census sample.
  • · 260 reviews in the last 8 weeks (~33/week).
  • · Review velocity up 20% vs the prior 8 weeks.
  • · Top 4% of 14,201 Strategy games in the census by review count.
Estimated sales: 182k–437k copies

Review-multiple estimate from 7,278 total reviews — how this is computed.

Current store prices

GOG$6.99-65%

Deal snapshots via CheapShark, refreshed daily.

All-time low: $4.92 at GreenManGaming (2026-09-14) · bundled 9×via IsThereAnyDeal

12-month high $24.99 · on sale 184 of 187 observed days · $2.07 above the all-time low (census price snapshots)

Review momentum

PositiveNegative
15115120182026Week of 2018-10-01: 116 positiveWeek of 2018-10-01: 84 negativeWeek of 2018-11-01: 26 positiveWeek of 2018-11-01: 35 negativeWeek of 2018-12-01: 14 positiveWeek of 2018-12-01: 16 negativeWeek of 2019-01-01: 14 positiveWeek of 2019-01-01: 17 negativeWeek of 2019-02-01: 9 positiveWeek of 2019-02-01: 13 negativeWeek of 2019-03-01: 15 positiveWeek of 2019-03-01: 3 negativeWeek of 2019-04-01: 14 positiveWeek of 2019-04-01: 7 negativeWeek of 2019-05-01: 23 positiveWeek of 2019-05-01: 18 negativeWeek of 2019-06-01: 33 positiveWeek of 2019-06-01: 3 negativeWeek of 2019-07-01: 30 positiveWeek of 2019-07-01: 7 negativeWeek of 2019-08-01: 34 positiveWeek of 2019-08-01: 8 negativeWeek of 2019-09-01: 15 positiveWeek of 2019-09-01: 10 negativeWeek of 2019-10-01: 20 positiveWeek of 2019-10-01: 7 negativeWeek of 2019-11-01: 113 positiveWeek of 2019-11-01: 9 negativeWeek of 2019-12-01: 108 positiveWeek of 2019-12-01: 21 negativeWeek of 2020-01-01: 94 positiveWeek of 2020-01-01: 24 negativeWeek of 2020-02-01: 67 positiveWeek of 2020-02-01: 15 negativeWeek of 2020-03-01: 117 positiveWeek of 2020-03-01: 20 negativeWeek of 2020-04-01: 151 positiveWeek of 2020-04-01: 30 negativeWeek of 2020-05-01: 87 positiveWeek of 2020-05-01: 21 negativeWeek of 2020-06-01: 63 positiveWeek of 2020-06-01: 20 negativeWeek of 2020-07-01: 75 positiveWeek of 2020-07-01: 20 negativeWeek of 2020-08-01: 51 positiveWeek of 2020-08-01: 11 negativeWeek of 2020-09-01: 75 positiveWeek of 2020-09-01: 11 negativeWeek of 2020-10-01: 86 positiveWeek of 2020-10-01: 21 negativeWeek of 2020-11-01: 67 positiveWeek of 2020-11-01: 15 negativeWeek of 2020-12-01: 126 positiveWeek of 2020-12-01: 29 negativeWeek of 2021-01-01: 102 positiveWeek of 2021-01-01: 34 negativeWeek of 2021-02-01: 54 positiveWeek of 2021-02-01: 11 negativeWeek of 2021-03-01: 75 positiveWeek of 2021-03-01: 29 negativeWeek of 2021-04-01: 60 positiveWeek of 2021-04-01: 31 negativeWeek of 2021-05-01: 51 positiveWeek of 2021-05-01: 23 negativeWeek of 2021-06-01: 42 positiveWeek of 2021-06-01: 15 negativeWeek of 2021-07-01: 56 positiveWeek of 2021-07-01: 15 negativeWeek of 2021-08-01: 45 positiveWeek of 2021-08-01: 18 negativeWeek of 2021-09-01: 31 positiveWeek of 2021-09-01: 21 negativeWeek of 2021-10-01: 42 positiveWeek of 2021-10-01: 28 negativeWeek of 2021-11-01: 41 positiveWeek of 2021-11-01: 88 negativeWeek of 2021-12-01: 33 positiveWeek of 2021-12-01: 24 negativeWeek of 2022-01-01: 45 positiveWeek of 2022-01-01: 16 negativeWeek of 2022-02-01: 32 positiveWeek of 2022-02-01: 6 negativeWeek of 2022-03-01: 22 positiveWeek of 2022-03-01: 5 negativeWeek of 2022-04-01: 31 positiveWeek of 2022-04-01: 5 negativeWeek of 2022-05-01: 49 positiveWeek of 2022-05-01: 19 negativeWeek of 2022-06-01: 37 positiveWeek of 2022-06-01: 11 negativeWeek of 2022-07-01: 28 positiveWeek of 2022-07-01: 15 negativeWeek of 2022-08-01: 21 positiveWeek of 2022-08-01: 8 negativeWeek of 2022-09-01: 21 positiveWeek of 2022-09-01: 12 negativeWeek of 2022-10-01: 34 positiveWeek of 2022-10-01: 25 negativeWeek of 2022-11-01: 26 positiveWeek of 2022-11-01: 14 negativeWeek of 2022-12-01: 33 positiveWeek of 2022-12-01: 9 negativeWeek of 2023-01-01: 49 positiveWeek of 2023-01-01: 34 negativeWeek of 2023-02-01: 30 positiveWeek of 2023-02-01: 55 negativeWeek of 2023-03-01: 32 positiveWeek of 2023-03-01: 33 negativeWeek of 2023-04-01: 21 positiveWeek of 2023-04-01: 53 negativeWeek of 2023-05-01: 20 positiveWeek of 2023-05-01: 38 negativeWeek of 2023-06-01: 18 positiveWeek of 2023-06-01: 21 negativeWeek of 2023-07-01: 22 positiveWeek of 2023-07-01: 34 negativeWeek of 2023-08-01: 22 positiveWeek of 2023-08-01: 13 negativeWeek of 2023-09-01: 28 positiveWeek of 2023-09-01: 6 negativeWeek of 2023-10-01: 26 positiveWeek of 2023-10-01: 6 negativeWeek of 2023-11-01: 48 positiveWeek of 2023-11-01: 17 negativeWeek of 2023-12-01: 35 positiveWeek of 2023-12-01: 20 negativeWeek of 2024-01-01: 34 positiveWeek of 2024-01-01: 20 negativeWeek of 2024-02-01: 15 positiveWeek of 2024-02-01: 6 negativeWeek of 2024-03-01: 32 positiveWeek of 2024-03-01: 7 negativeWeek of 2024-04-01: 21 positiveWeek of 2024-04-01: 4 negativeWeek of 2024-05-01: 20 positiveWeek of 2024-05-01: 2 negativeWeek of 2024-06-01: 18 positiveWeek of 2024-06-01: 5 negativeWeek of 2024-07-01: 20 positiveWeek of 2024-07-01: 17 negativeWeek of 2024-08-01: 17 positiveWeek of 2024-08-01: 5 negativeWeek of 2024-09-01: 24 positiveWeek of 2024-09-01: 12 negativeWeek of 2024-10-01: 17 positiveWeek of 2024-10-01: 10 negativeWeek of 2024-11-01: 35 positiveWeek of 2024-11-01: 3 negativeWeek of 2024-12-01: 30 positiveWeek of 2024-12-01: 3 negativeWeek of 2025-01-01: 35 positiveWeek of 2025-01-01: 3 negativeWeek of 2025-02-01: 19 positiveWeek of 2025-02-01: 26 negativeWeek of 2025-03-01: 18 positiveWeek of 2025-03-01: 10 negativeWeek of 2025-04-01: 17 positiveWeek of 2025-04-01: 16 negativeWeek of 2025-05-01: 15 positiveWeek of 2025-05-01: 6 negativeWeek of 2025-06-01: 14 positiveWeek of 2025-06-01: 8 negativeWeek of 2025-07-01: 19 positiveWeek of 2025-07-01: 11 negativeWeek of 2025-08-01: 12 positiveWeek of 2025-08-01: 19 negativeWeek of 2025-09-01: 18 positiveWeek of 2025-09-01: 4 negativeWeek of 2025-10-01: 17 positiveWeek of 2025-10-01: 9 negativeWeek of 2025-11-01: 24 positiveWeek of 2025-11-01: 7 negativeWeek of 2025-12-01: 20 positiveWeek of 2025-12-01: 26 negativeWeek of 2026-01-01: 32 positiveWeek of 2026-01-01: 45 negativeWeek of 2026-02-01: 24 positiveWeek of 2026-02-01: 12 negativeWeek of 2026-03-01: 15 positiveWeek of 2026-03-01: 14 negativeWeek of 2026-04-01: 13 positiveWeek of 2026-04-01: 6 negativeWeek of 2026-05-01: 16 positiveWeek of 2026-05-01: 7 negativeWeek of 2026-06-01: 12 positiveWeek of 2026-06-01: 4 negativeWeek of 2026-07-01: 6 positiveWeek of 2026-07-01: 8 negativeWeek of 2026-08-01: 9 positiveWeek of 2026-08-01: 2 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

6291842026-09-15 12:00 — 296 players2026-09-16 21:00 — 405 players2026-09-18 04:00 — 217 players2026-09-19 12:00 — 352 players2026-09-20 19:00 — 629 players2026-09-22 03:00 — 272 players2026-09-23 10:00 — 271 players2026-09-24 18:00 — 451 players2026-09-26 01:00 — 297 players2026-09-27 09:00 — 316 players2026-09-28 16:00 — 415 players2026-09-30 00:00 — 272 players2026-10-01 07:00 — 224 players2026-10-02 15:00 — 407 players2026-10-03 23:00 — 390 players2026-10-05 07:00 — 198 players2026-10-06 14:00 — 312 players2026-10-07 22:00 — 379 players2026-10-09 05:00 — 202 players2026-10-10 13:00 — 246 players2026-10-11 20:00 — 331 players2026-10-13 04:00 — 213 players2026-10-14 11:00 — 265 players2026-10-15 03:00 — 245 players
Concurrent players, hourly average, last 30 days (census samples).
727128Oct 2018Aug 2026Oct 2018 — avg 303 · peak 621Jan 2019 — avg 142 · peak 252Apr 2019 — avg 145 · peak 276Jul 2019 — avg 156 · peak 253Oct 2019 — avg 220 · peak 404Jan 2020 — avg 252 · peak 543Apr 2020 — avg 645 · peak 1,444Jul 2020 — avg 405 · peak 777Oct 2020 — avg 420 · peak 940Jan 2021 — avg 670 · peak 1,466Apr 2021 — avg 587 · peak 1,290Jul 2021 — avg 450 · peak 871Oct 2021 — avg 472 · peak 952Jan 2022 — avg 524 · peak 1,017Apr 2022 — avg 461 · peak 848Jul 2022 — avg 457 · peak 836Oct 2022 — avg 448 · peak 856Jan 2023 — avg 504 · peak 969Apr 2023 — avg 413 · peak 748Jul 2023 — avg 346 · peak 652Oct 2023 — avg 406 · peak 760Jan 2024 — avg 487 · peak 992Apr 2024 — avg 414 · peak 818Jul 2024 — avg 385 · peak 746Oct 2024 — avg 411 · peak 773Jan 2025 — avg 464 · peak 889Apr 2025 — avg 386 · peak 721Jul 2025 — avg 364 · peak 686Oct 2025 — avg 348 · peak 672Jan 2026 — avg 381 · peak 1,024Apr 2026 — avg 362 · peak 701Jul 2026 — avg 326 · peak 586Aug 2026 — avg 348 · peak 651
Monthly average players (source: steamcharts.com) — history via steamcharts.com; live census sampling since Aug 2026.

Chart history

PositiveNegative
332026-09-212026-10-142026-09-22: 1 new positive2026-09-22: 1 new negative2026-09-23: 1 new positive2026-09-26: 1 new negative2026-09-28: 2 new negative2026-09-29: 1 new positive2026-09-30: 2 new positive2026-10-01: 1 new negative2026-10-02: 1 new positive2026-10-02: 1 new negative2026-10-03: 1 new negative2026-10-04: 1 new positive2026-10-04: 1 new negative2026-10-05: 1 new positive2026-10-08: 1 new negative2026-10-09: 1 new negative2026-10-10: 3 new positive2026-10-13: 2 new positive2026-10-14: 1 new positive
New Steam reviews per day (census review snapshots). Positive above the line, negative below.

Price history

$24.99$5.232018-10-172026-10-152018-10-17 — best price $24.992019-09-30 — best price $19.992020-05-05 — best price $19.322020-06-26 — best price $24.992020-08-16 — best price $17.882020-09-29 — best price $17.882020-11-15 — best price $19.992021-01-07 — best price $16.882021-02-14 — best price $16.882021-03-29 — best price $19.992021-05-07 — best price $19.992021-06-28 — best price $19.992021-10-30 — best price $12.492022-04-06 — best price $16.882022-07-14 — best price $9.992022-10-18 — best price $13.992022-12-19 — best price $18.842023-04-04 — best price $19.992023-07-01 — best price $16.882023-11-02 — best price $9.992024-01-23 — best price $15.742024-03-22 — best price $15.742024-06-20 — best price $8.002024-08-27 — best price $19.992024-11-11 — best price $13.942025-01-16 — best price $9.002025-04-08 — best price $8.742025-07-02 — best price $8.002025-09-03 — best price $5.232025-11-02 — best price $19.992026-01-01 — best price $19.992026-03-02 — best price $7.492026-04-23 — best price $19.992026-06-16 — best price $16.882026-08-15 — best price $5.602026-09-15 — best price $19.992026-10-10 — best price $19.992026-10-15 — best price $6.99
Lowest recorded price across tracked stores, per day (census snapshots).

Twitch viewers

702026-10-01 07:34 — 0 viewers2026-10-01 16:34 — 0 viewers2026-10-02 01:34 — 0 viewers2026-10-02 10:34 — 0 viewers2026-10-02 19:34 — 0 viewers2026-10-03 04:34 — 0 viewers2026-10-03 14:34 — 0 viewers2026-10-04 00:34 — 0 viewers2026-10-04 09:34 — 0 viewers2026-10-04 18:34 — 0 viewers2026-10-05 03:34 — 0 viewers2026-10-06 04:34 — 0 viewers2026-10-06 13:34 — 0 viewers2026-10-08 01:34 — 0 viewers2026-10-08 10:34 — 0 viewers2026-10-08 19:34 — 0 viewers2026-10-09 04:34 — 0 viewers2026-10-10 00:34 — 0 viewers2026-10-10 09:34 — 0 viewers2026-10-12 05:34 — 0 viewers2026-10-12 14:34 — 0 viewers2026-10-12 23:34 — 0 viewers2026-10-13 11:34 — 0 viewers2026-10-13 21:34 — 0 viewers2026-10-14 06:34 — 0 viewers2026-10-14 15:34 — 0 viewers2026-10-15 00:34 — 0 viewers2026-10-15 06:34 — 0 viewers
Hourly Twitch viewers (census snapshots).

Completion

40
achievements tracked
68.1%
earned "Prop-M Rover"
18.2%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsmacOSSingle-playerMulti-playerPvPOnline PvPShared/Split Screen PvPSteam AchievementsSteam Turn NotificationsRemote Play TogetherFamily Sharing6 DLC

6 supported languages: English, French, Italian, German, Spanish - Spain, Swedish

Post-launch support: 6 DLC released, first 2020-12-08, latest 2026-01-22 (Steam store data)

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)4,3790%40

Players tracked by Exophase (achievement/trophy trackers) — a sample of the player base, not total sales.

Where its players are

Share of Steam reviews by language (top languages measured) — a proxy for where the player base lives.

Player tags

PvPMarsSpaceSci-fiHex GridStrategyTabletopDifficultBoard GameManagement

Census log

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

Recent updates

Players also track

Star Control®: OriginsTransOcean: The Shipping CompanySol 0: Mars ColonizationPlanetbasePolaris SectorBronze Age - HD EditionAge of Wonders: PlanetfallBusiness Magnate

Similarity via IGDB.

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