The Game Census
Kerbal Space Program cover art

Kerbal Space Program

Squad · Private Division · 2015-04-27

SteamGOGEpic Games Store

IndieSimulation

Modes: Single player

Releases: Jul 15, 2016 (Xbox One), Apr 27, 2015 (Mac), Apr 27, 2015 (Linux), Apr 27, 2015 (PC (Microsoft Windows)), Jan 16, 2016 (PlayStation 4), 2017 (Wii U)

In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.

3,425
playing now
96%
positive of 146k reviews
Overwhelmingly Positive
steam rating
2,000,000–5,000,000
owners (SteamSpy est.)
12
twitch viewers (latest)
87/100
critic score (7 outlets, IGDB)
86/100
IGDB user rating (205 ratings)
platinum
deck/linux tier (ProtonDB)
$39.99
steam price (US)

3,425 players in-game as of 2026-08-30 00:00 UTC (census sample)

Kerbal Space Program is a 2015 space flight simulation video game developed by Mexican studio Squad for Linux, macOS, Windows, PlayStation 4, PlayStation 5, Xbox Series X/S and Xbox One. In the game, players direct the space program of a species of green humanoid aliens known as Kerbals. The game features a pseudorealistic orbital physics engine, allowing for various real-life orbital maneuvers such as Hohmann transfer orbits and orbital rendezvous.

Trailer

Kerbal Space Program trailer thumbnail

Kerbal Space Program Launch Trailer

≈1,000,000 YouTube results for this game's trailer search

Health check

Healthy
  • · 3,425 players in-game at the last census sample.
  • · 13,247 reviews in the last 8 weeks (~1,656/week).
  • · Review velocity up 172% vs the prior 8 weeks.
  • · Top 1% of 17,871 Indie games in the census by review count.

Health tier since 2026-08-28

Estimated sales: 3.7M–8.8M copies

Review-multiple estimate from 146,355 total reviews — how this is computed.

Current store prices

GameBillet$9.95-75%
lowest across shops (ITAD)$9.95-75%
GOG$9.99-75%
GOG$9.99-75%
IndieGala$10.68-73%
GamersGate$12.00-70%

Deal snapshots via CheapShark, refreshed daily.

All-time low: $3.99 at Steam (2025-06-26) · bundled 5×via IsThereAnyDeal

12-month high $39.99 · on sale 123 of 173 observed days · $6.00 above the all-time low (census price snapshots)

Review momentum

PositiveNegative
4.1k4.1k20182026Week of 2018-01-01: 397 positiveWeek of 2018-01-01: 16 negativeWeek of 2018-02-01: 342 positiveWeek of 2018-02-01: 53 negativeWeek of 2018-03-01: 722 positiveWeek of 2018-03-01: 192 negativeWeek of 2018-04-01: 254 positiveWeek of 2018-04-01: 168 negativeWeek of 2018-05-01: 320 positiveWeek of 2018-05-01: 563 negativeWeek of 2018-06-01: 373 positiveWeek of 2018-06-01: 366 negativeWeek of 2018-07-01: 243 positiveWeek of 2018-07-01: 98 negativeWeek of 2018-08-01: 173 positiveWeek of 2018-08-01: 68 negativeWeek of 2018-09-01: 126 positiveWeek of 2018-09-01: 17 negativeWeek of 2018-10-01: 137 positiveWeek of 2018-10-01: 18 negativeWeek of 2018-11-01: 1,400 positiveWeek of 2018-11-01: 30 negativeWeek of 2018-12-01: 239 positiveWeek of 2018-12-01: 20 negativeWeek of 2019-01-01: 236 positiveWeek of 2019-01-01: 15 negativeWeek of 2019-02-01: 196 positiveWeek of 2019-02-01: 19 negativeWeek of 2019-03-01: 194 positiveWeek of 2019-03-01: 16 negativeWeek of 2019-04-01: 140 positiveWeek of 2019-04-01: 23 negativeWeek of 2019-05-01: 229 positiveWeek of 2019-05-01: 21 negativeWeek of 2019-06-01: 1,076 positiveWeek of 2019-06-01: 42 negativeWeek of 2019-07-01: 1,249 positiveWeek of 2019-07-01: 35 negativeWeek of 2019-08-01: 317 positiveWeek of 2019-08-01: 25 negativeWeek of 2019-09-01: 193 positiveWeek of 2019-09-01: 19 negativeWeek of 2019-10-01: 537 positiveWeek of 2019-10-01: 20 negativeWeek of 2019-11-01: 3,001 positiveWeek of 2019-11-01: 31 negativeWeek of 2019-12-01: 1,898 positiveWeek of 2019-12-01: 34 negativeWeek of 2020-01-01: 1,753 positiveWeek of 2020-01-01: 34 negativeWeek of 2020-02-01: 1,526 positiveWeek of 2020-02-01: 21 negativeWeek of 2020-03-01: 1,661 positiveWeek of 2020-03-01: 32 negativeWeek of 2020-04-01: 1,371 positiveWeek of 2020-04-01: 27 negativeWeek of 2020-05-01: 1,426 positiveWeek of 2020-05-01: 25 negativeWeek of 2020-06-01: 1,555 positiveWeek of 2020-06-01: 54 negativeWeek of 2020-07-01: 1,470 positiveWeek of 2020-07-01: 23 negativeWeek of 2020-08-01: 996 positiveWeek of 2020-08-01: 20 negativeWeek of 2020-09-01: 722 positiveWeek of 2020-09-01: 9 negativeWeek of 2020-10-01: 1,112 positiveWeek of 2020-10-01: 28 negativeWeek of 2020-11-01: 1,381 positiveWeek of 2020-11-01: 36 negativeWeek of 2020-12-01: 1,485 positiveWeek of 2020-12-01: 41 negativeWeek of 2021-01-01: 1,460 positiveWeek of 2021-01-01: 43 negativeWeek of 2021-02-01: 1,114 positiveWeek of 2021-02-01: 32 negativeWeek of 2021-03-01: 978 positiveWeek of 2021-03-01: 19 negativeWeek of 2021-04-01: 828 positiveWeek of 2021-04-01: 18 negativeWeek of 2021-05-01: 1,021 positiveWeek of 2021-05-01: 21 negativeWeek of 2021-06-01: 1,356 positiveWeek of 2021-06-01: 47 negativeWeek of 2021-07-01: 1,094 positiveWeek of 2021-07-01: 41 negativeWeek of 2021-08-01: 857 positiveWeek of 2021-08-01: 34 negativeWeek of 2021-09-01: 819 positiveWeek of 2021-09-01: 34 negativeWeek of 2021-10-01: 788 positiveWeek of 2021-10-01: 36 negativeWeek of 2021-11-01: 949 positiveWeek of 2021-11-01: 27 negativeWeek of 2021-12-01: 908 positiveWeek of 2021-12-01: 34 negativeWeek of 2022-01-01: 981 positiveWeek of 2022-01-01: 32 negativeWeek of 2022-02-01: 713 positiveWeek of 2022-02-01: 21 negativeWeek of 2022-03-01: 774 positiveWeek of 2022-03-01: 27 negativeWeek of 2022-04-01: 785 positiveWeek of 2022-04-01: 33 negativeWeek of 2022-05-01: 818 positiveWeek of 2022-05-01: 32 negativeWeek of 2022-06-01: 772 positiveWeek of 2022-06-01: 29 negativeWeek of 2022-07-01: 826 positiveWeek of 2022-07-01: 25 negativeWeek of 2022-08-01: 736 positiveWeek of 2022-08-01: 22 negativeWeek of 2022-09-01: 738 positiveWeek of 2022-09-01: 26 negativeWeek of 2022-10-01: 884 positiveWeek of 2022-10-01: 31 negativeWeek of 2022-11-01: 998 positiveWeek of 2022-11-01: 199 negativeWeek of 2022-12-01: 1,057 positiveWeek of 2022-12-01: 58 negativeWeek of 2023-01-01: 1,072 positiveWeek of 2023-01-01: 55 negativeWeek of 2023-02-01: 1,012 positiveWeek of 2023-02-01: 43 negativeWeek of 2023-03-01: 953 positiveWeek of 2023-03-01: 58 negativeWeek of 2023-04-01: 559 positiveWeek of 2023-04-01: 32 negativeWeek of 2023-05-01: 424 positiveWeek of 2023-05-01: 17 negativeWeek of 2023-06-01: 531 positiveWeek of 2023-06-01: 17 negativeWeek of 2023-07-01: 666 positiveWeek of 2023-07-01: 35 negativeWeek of 2023-08-01: 480 positiveWeek of 2023-08-01: 21 negativeWeek of 2023-09-01: 486 positiveWeek of 2023-09-01: 28 negativeWeek of 2023-10-01: 460 positiveWeek of 2023-10-01: 24 negativeWeek of 2023-11-01: 481 positiveWeek of 2023-11-01: 21 negativeWeek of 2023-12-01: 547 positiveWeek of 2023-12-01: 17 negativeWeek of 2024-01-01: 480 positiveWeek of 2024-01-01: 23 negativeWeek of 2024-02-01: 449 positiveWeek of 2024-02-01: 17 negativeWeek of 2024-03-01: 456 positiveWeek of 2024-03-01: 21 negativeWeek of 2024-04-01: 412 positiveWeek of 2024-04-01: 17 negativeWeek of 2024-05-01: 486 positiveWeek of 2024-05-01: 18 negativeWeek of 2024-06-01: 601 positiveWeek of 2024-06-01: 23 negativeWeek of 2024-07-01: 618 positiveWeek of 2024-07-01: 24 negativeWeek of 2024-08-01: 434 positiveWeek of 2024-08-01: 6 negativeWeek of 2024-09-01: 524 positiveWeek of 2024-09-01: 25 negativeWeek of 2024-10-01: 363 positiveWeek of 2024-10-01: 11 negativeWeek of 2024-11-01: 429 positiveWeek of 2024-11-01: 6 negativeWeek of 2024-12-01: 445 positiveWeek of 2024-12-01: 13 negativeWeek of 2025-01-01: 446 positiveWeek of 2025-01-01: 17 negativeWeek of 2025-02-01: 502 positiveWeek of 2025-02-01: 13 negativeWeek of 2025-03-01: 607 positiveWeek of 2025-03-01: 18 negativeWeek of 2025-04-01: 512 positiveWeek of 2025-04-01: 16 negativeWeek of 2025-05-01: 476 positiveWeek of 2025-05-01: 12 negativeWeek of 2025-06-01: 526 positiveWeek of 2025-06-01: 78 negativeWeek of 2025-07-01: 1,036 positiveWeek of 2025-07-01: 36 negativeWeek of 2025-08-01: 592 positiveWeek of 2025-08-01: 54 negativeWeek of 2025-09-01: 430 positiveWeek of 2025-09-01: 22 negativeWeek of 2025-10-01: 539 positiveWeek of 2025-10-01: 19 negativeWeek of 2025-11-01: 507 positiveWeek of 2025-11-01: 13 negativeWeek of 2025-12-01: 569 positiveWeek of 2025-12-01: 15 negativeWeek of 2026-01-01: 524 positiveWeek of 2026-01-01: 12 negativeWeek of 2026-02-01: 684 positiveWeek of 2026-02-01: 21 negativeWeek of 2026-03-01: 734 positiveWeek of 2026-03-01: 31 negativeWeek of 2026-04-01: 2,916 positiveWeek of 2026-04-01: 70 negativeWeek of 2026-05-01: 4,116 positiveWeek of 2026-05-01: 88 negativeWeek of 2026-06-01: 1,877 positiveWeek of 2026-06-01: 45 negativeWeek of 2026-07-01: 1,500 positiveWeek of 2026-07-01: 45 negativeWeek of 2026-08-01: 1,188 positiveWeek of 2026-08-01: 22 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

5.1k2.3k2026-08-06 21:00 — 4,382 players2026-08-07 05:00 — 2,988 players2026-08-07 13:00 — 3,636 players2026-08-07 21:00 — 4,596 players2026-08-08 05:00 — 3,411 players2026-08-08 13:00 — 3,977 players2026-08-08 21:00 — 4,926 players2026-08-09 05:00 — 3,433 players2026-08-09 13:00 — 4,157 players2026-08-09 21:00 — 4,939 players2026-08-10 05:00 — 2,881 players2026-08-10 13:00 — 3,714 players2026-08-10 21:00 — 4,480 players2026-08-11 05:00 — 2,779 players2026-08-11 13:00 — 3,648 players2026-08-12 21:00 — 4,247 players2026-08-14 04:00 — 2,745 players2026-08-15 12:00 — 3,631 players2026-08-16 20:00 — 4,977 players2026-08-18 04:00 — 2,806 players2026-08-19 11:00 — 2,786 players2026-08-20 19:00 — 3,845 players2026-08-22 02:00 — 3,419 players2026-08-23 10:00 — 3,077 players2026-08-24 17:00 — 3,643 players2026-08-26 01:00 — 3,157 players2026-08-27 09:00 — 2,281 players2026-08-28 17:00 — 3,417 players2026-08-30 00:00 — 3,425 players
Concurrent players, hourly average, last 30 days (census samples).

Price history

$39.99$6.952015-01-012026-08-302015-01-01 — best price $17.992015-11-25 — best price $19.992016-06-22 — best price $23.992016-12-26 — best price $19.992017-09-14 — best price $23.992018-02-01 — best price $20.492018-06-09 — best price $35.992018-09-21 — best price $17.752018-12-31 — best price $14.002019-04-05 — best price $39.992019-06-26 — best price $9.992019-10-29 — best price $7.992020-01-19 — best price $39.922020-03-31 — best price $39.992020-06-27 — best price $33.792020-09-24 — best price $8.492020-12-05 — best price $37.992021-03-10 — best price $8.992021-06-18 — best price $9.992021-10-04 — best price $9.992022-01-06 — best price $33.592022-05-17 — best price $35.692022-09-09 — best price $39.992022-12-06 — best price $35.692023-03-15 — best price $39.992023-06-22 — best price $8.902023-10-09 — best price $9.992024-01-12 — best price $8.702024-04-08 — best price $36.862024-07-13 — best price $39.992024-10-19 — best price $10.002025-03-04 — best price $39.992025-06-28 — best price $10.682025-10-25 — best price $12.002026-02-04 — best price $39.992026-05-01 — best price $9.992026-07-30 — best price $9.992026-08-30 — best price $9.99
Lowest recorded price across tracked stores, per day (census snapshots).

Attention

1.5k2552026-05-30 — 477 pageviews2026-06-02 — 937 pageviews2026-06-05 — 622 pageviews2026-06-08 — 538 pageviews2026-06-11 — 480 pageviews2026-06-14 — 450 pageviews2026-06-17 — 392 pageviews2026-06-20 — 346 pageviews2026-06-23 — 386 pageviews2026-06-26 — 393 pageviews2026-06-29 — 365 pageviews2026-07-02 — 340 pageviews2026-07-05 — 429 pageviews2026-07-08 — 391 pageviews2026-07-11 — 351 pageviews2026-07-14 — 452 pageviews2026-07-17 — 375 pageviews2026-07-20 — 370 pageviews2026-07-23 — 370 pageviews2026-07-26 — 338 pageviews2026-07-29 — 333 pageviews2026-08-01 — 329 pageviews2026-08-04 — 399 pageviews2026-08-07 — 309 pageviews2026-08-10 — 324 pageviews2026-08-13 — 316 pageviews2026-08-16 — 340 pageviews2026-08-19 — 280 pageviews2026-08-22 — 303 pageviews2026-08-25 — 376 pageviews2026-08-27 — 334 pageviews
Daily Wikipedia pageviews (attention proxy, census-recorded).

Twitch viewers

5.0k42026-08-24 08:12 — 1,744 viewers2026-08-25 00:12 — 4,154 viewers2026-08-25 02:12 — 3,513 viewers2026-08-26 00:12 — 4,408 viewers2026-08-28 10:34 — 750 viewers2026-08-28 12:34 — 41 viewers2026-08-28 14:34 — 70 viewers2026-08-28 16:35 — 79 viewers2026-08-28 18:34 — 408 viewers2026-08-28 20:34 — 89 viewers2026-08-28 22:34 — 104 viewers2026-08-29 00:34 — 139 viewers2026-08-29 02:34 — 74 viewers2026-08-29 04:34 — 16 viewers2026-08-29 06:34 — 864 viewers2026-08-29 08:34 — 927 viewers2026-08-29 10:34 — 759 viewers2026-08-29 12:35 — 31 viewers2026-08-29 14:34 — 18 viewers2026-08-29 16:34 — 26 viewers2026-08-29 18:34 — 82 viewers2026-08-29 20:34 — 79 viewers2026-08-29 22:34 — 68 viewers2026-08-30 00:34 — 75 viewers2026-08-30 02:34 — 46 viewers2026-08-30 04:34 — 11 viewers2026-08-30 06:34 — 15 viewers2026-08-30 08:34 — 15 viewers2026-08-30 10:34 — 4 viewers2026-08-30 12:34 — 29 viewers2026-08-30 14:34 — 12 viewers2026-08-30 15:34 — 12 viewers
Hourly Twitch viewers (census snapshots).

Details

WindowsmacOSLinuxSingle-playerSteam Trading CardsSteam WorkshopPartial Controller SupportSteam CloudFamily Sharing2 DLC

9 supported languages: English, Spanish - Spain, Simplified Chinese, Japanese, Russian, French, Italian, German, Portuguese - Brazil

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Xbox One (Xbox)1,3360%44
PS4 (PlayStation)6800%45

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

FunnyIndieSpaceSci-fiPhysicsSandboxScienceBuildingModdableEducation

Census log

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

Recent updates

Players also track

StarMadeCreativerseUnclaimed WorldFactorioJudgment: Apocalypse Survival SimulationForce of NatureDude SimulatorJunkyard Simulator

Similarity via IGDB.

Wikipedia ↗Official site ↗