The Game Census
Sid Meier's Alpha Centauri™ Planetary Pack cover art

Sid Meier's Alpha Centauri™ Planetary Pack

Firaxis Games · Electronic Arts · 2024-03-07

SteamGOGEpic Games Store

Strategy

Modes: Single player, Multiplayer

Releases: Feb 23, 2000 (PC (Microsoft Windows)), Sep 24, 2002 (Mac), Mar 2001 (Linux)

Sid Meier's Alpha Centauri™ Planetary Pack includes the original Alpha Centauri and the expansion, Alien Crossfire.

Sid Meier's Alpha Centauri™ Planetary Pack is a Strategy title released in 2024, priced at $4.99, with an estimated 100,000 to 200,000 owners and a Very Positive review sentiment (90% of 614 reviews).

45
playing now
90%
positive of 614 reviews
Very Positive
steam's rating (official)
100,000–200,000
owners (SteamSpy est.)
gold
deck/linux tier (ProtonDB)
Playable
Steam Deck (Valve)
SteamOS: Playable
$4.99
steam price (US)

45 players in-game as of 2026-10-14 15:00 UTC (census sample)

Sid Meier's Alpha Centauri is a 4X video game, considered a spiritual sequel to the Civilization series. Set in a science fiction depiction of the 22nd century, the game begins as seven competing ideological factions land on the planet Chiron ("Planet") in the Alpha Centauri star system. As the game progresses, Planet's growing sentience becomes a formidable obstacle to the human colonists.

Health check

Quietly active
  • · 45 players in-game at the last census sample.
  • · 94 reviews in the last 8 weeks (~12/week).
  • · Review velocity up 15% vs the prior 8 weeks.
  • · Top 19% of 14,061 Strategy games in the census by review count.

Health tier since 2026-08-31

Estimated sales: 12k–28k copies

Review-multiple estimate from 614 total reviews — how this is computed.

Current store prices

GOG$0.99-83%

Deal snapshots via CheapShark, refreshed daily.

All-time low: $0.89 at GOG (2018-06-04)via IsThereAnyDeal

12-month high $5.99 · on sale 68 of 98 observed days · $0.10 above the all-time low (census price snapshots)

Review momentum

PositiveNegative
17817820242026Week of 2024-03-01: 178 positiveWeek of 2024-03-01: 6 negativeWeek of 2024-04-01: 23 positiveWeek of 2024-04-01: 2 negativeWeek of 2024-05-01: 23 positiveWeek of 2024-05-01: 3 negativeWeek of 2024-06-01: 16 positiveWeek of 2024-07-01: 30 positiveWeek of 2024-07-01: 2 negativeWeek of 2024-08-01: 14 positiveWeek of 2024-08-01: 4 negativeWeek of 2024-09-01: 9 positiveWeek of 2024-09-01: 1 negativeWeek of 2024-10-01: 7 positiveWeek of 2024-10-01: 1 negativeWeek of 2024-11-01: 38 positiveWeek of 2024-11-01: 1 negativeWeek of 2024-12-01: 27 positiveWeek of 2024-12-01: 4 negativeWeek of 2025-01-01: 13 positiveWeek of 2025-01-01: 1 negativeWeek of 2025-02-01: 11 positiveWeek of 2025-02-01: 8 negativeWeek of 2025-03-01: 7 positiveWeek of 2025-04-01: 8 positiveWeek of 2025-04-01: 1 negativeWeek of 2025-05-01: 12 positiveWeek of 2025-05-01: 3 negativeWeek of 2025-06-01: 11 positiveWeek of 2025-06-01: 2 negativeWeek of 2025-07-01: 8 positiveWeek of 2025-07-01: 2 negativeWeek of 2025-08-01: 10 positiveWeek of 2025-08-01: 2 negativeWeek of 2025-09-01: 11 positiveWeek of 2025-10-01: 7 positiveWeek of 2025-10-01: 1 negativeWeek of 2025-11-01: 3 positiveWeek of 2025-11-01: 1 negativeWeek of 2025-12-01: 7 positiveWeek of 2025-12-01: 3 negativeWeek of 2026-01-01: 10 positiveWeek of 2026-01-01: 1 negativeWeek of 2026-02-01: 7 positiveWeek of 2026-03-01: 11 positiveWeek of 2026-03-01: 1 negativeWeek of 2026-04-01: 16 positiveWeek of 2026-04-01: 3 negativeWeek of 2026-05-01: 7 positiveWeek of 2026-05-01: 2 negativeWeek of 2026-06-01: 11 positiveWeek of 2026-06-01: 2 negativeWeek of 2026-07-01: 11 positiveWeek of 2026-07-01: 2 negativeWeek of 2026-08-01: 6 positive
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

7502026-09-15 01:00 — 42 players2026-09-16 09:00 — 29 players2026-09-17 16:00 — 40 players2026-09-19 00:00 — 55 players2026-09-20 07:00 — 46 players2026-09-21 15:00 — 47 players2026-09-22 23:00 — 47 players2026-09-24 06:00 — 28 players2026-09-25 14:00 — 43 players2026-09-26 21:00 — 74 players2026-09-28 05:00 — 44 players2026-09-29 12:00 — 47 players2026-09-30 20:00 — 57 players2026-10-02 03:00 — 40 players2026-10-03 11:00 — 57 players2026-10-04 19:00 — 67 players2026-10-06 02:00 — 55 players2026-10-07 10:00 — 32 players2026-10-08 17:00 — 48 players2026-10-10 01:00 — 57 players2026-10-11 08:00 — 43 players2026-10-12 16:00 — 64 players2026-10-14 00:00 — 0 players2026-10-14 15:00 — 45 players
Concurrent players, hourly average, last 30 days (census samples).
9331Mar 2024Aug 2026Mar 2024 — avg 93 · peak 276Apr 2024 — avg 40 · peak 91May 2024 — avg 38 · peak 83Jun 2024 — avg 34 · peak 80Jul 2024 — avg 45 · peak 86Aug 2024 — avg 37 · peak 74Sep 2024 — avg 35 · peak 67Oct 2024 — avg 31 · peak 59Nov 2024 — avg 38 · peak 85Dec 2024 — avg 38 · peak 75Jan 2025 — avg 41 · peak 76Feb 2025 — avg 42 · peak 84Mar 2025 — avg 40 · peak 78Apr 2025 — avg 37 · peak 79May 2025 — avg 36 · peak 67Jun 2025 — avg 37 · peak 68Jul 2025 — avg 37 · peak 77Aug 2025 — avg 39 · peak 80Sep 2025 — avg 38 · peak 74Oct 2025 — avg 37 · peak 67Nov 2025 — avg 41 · peak 75Dec 2025 — avg 39 · peak 74Jan 2026 — avg 42 · peak 88Feb 2026 — avg 42 · peak 86Mar 2026 — avg 43 · peak 80Apr 2026 — avg 46 · peak 117May 2026 — avg 50 · peak 105Jun 2026 — avg 47 · peak 94Jul 2026 — avg 45 · peak 80Aug 2026 — avg 46 · peak 83
Monthly average players (source: steamcharts.com) — history via steamcharts.com; live census sampling since Aug 2026.

Price history

$5.99$0.992015-01-012026-10-142015-01-01 — best price $4.992015-07-28 — best price $5.992016-06-22 — best price $5.992017-05-15 — best price $5.992018-06-19 — best price $5.992019-01-04 — best price $5.992019-09-16 — best price $5.992020-01-31 — best price $5.992020-09-11 — best price $5.992021-01-11 — best price $5.992021-06-28 — best price $5.992022-01-31 — best price $5.992022-09-06 — best price $5.992023-01-06 — best price $1.492023-09-22 — best price $1.492024-03-28 — best price $4.992024-07-11 — best price $4.992024-11-13 — best price $2.992025-01-09 — best price $4.992025-03-13 — best price $2.492025-06-02 — best price $5.992025-08-11 — best price $4.992025-10-28 — best price $2.992026-01-05 — best price $4.992026-02-23 — best price $4.992026-04-24 — best price $5.992026-06-20 — best price $0.992026-08-28 — best price $2.392026-09-07 — best price $2.392026-09-17 — best price $5.992026-09-27 — best price $0.992026-10-07 — best price $5.992026-10-14 — best price $0.99
Lowest recorded price across tracked stores, per day (census snapshots).

Attention

426992026-05-30 — 136 pageviews2026-06-03 — 113 pageviews2026-06-07 — 426 pageviews2026-06-11 — 197 pageviews2026-06-15 — 142 pageviews2026-06-19 — 139 pageviews2026-06-23 — 137 pageviews2026-06-27 — 137 pageviews2026-07-01 — 146 pageviews2026-07-05 — 136 pageviews2026-07-09 — 139 pageviews2026-07-13 — 150 pageviews2026-07-17 — 248 pageviews2026-07-21 — 151 pageviews2026-07-25 — 187 pageviews2026-07-29 — 182 pageviews2026-08-02 — 134 pageviews2026-08-06 — 119 pageviews2026-08-10 — 165 pageviews2026-08-14 — 159 pageviews2026-08-18 — 146 pageviews2026-08-22 — 138 pageviews2026-08-26 — 131 pageviews2026-08-30 — 133 pageviews2026-09-03 — 166 pageviews2026-09-07 — 202 pageviews2026-09-11 — 157 pageviews2026-09-15 — 128 pageviews2026-09-19 — 136 pageviews2026-09-23 — 138 pageviews2026-09-27 — 152 pageviews2026-10-01 — 109 pageviews2026-10-05 — 127 pageviews2026-10-08 — 115 pageviews
Daily Wikipedia pageviews (attention proxy, census-recorded).

Details

WindowsSingle-playerMulti-playerPvPLAN PvPSteam CloudFamily Sharing

Player tags

4XSpaceSci-fiStrategyMultiplayerSingleplayerTurn-Based Strategy

Census log

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

Players also track

Might & Magic® Heroes® VIISol 0: Mars ColonizationPlanetbasePolaris SectorTears of AviaCthulhu RealmsAge of Wonders: PlanetfallInterstellar Space: Genesis

Similarity via IGDB.