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.

39
playing now
90%
positive of 610 reviews
Very Positive
steam rating
100,000–200,000
owners (SteamSpy est.)
gold
deck/linux tier (ProtonDB)
$4.99
steam price (US)

39 players in-game as of 2026-08-30 06:00 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

Insufficient data
  • · Not enough review history collected yet to judge health.
  • · Top 40% of 5,890 Strategy games in the census by review count.
Estimated sales: 12k–27k copies

Review-multiple estimate from 610 total reviews — how this is computed.

Current store prices

GOG$2.39-60%
lowest across shops (ITAD)$2.39-60%

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 47 of 60 observed days · $1.50 above the all-time low (census price snapshots)

Players online

70282026-08-11 19:00 — 48 players2026-08-12 11:00 — 28 players2026-08-13 03:00 — 38 players2026-08-13 19:00 — 41 players2026-08-14 10:00 — 35 players2026-08-15 02:00 — 57 players2026-08-15 18:00 — 66 players2026-08-16 10:00 — 46 players2026-08-17 02:00 — 57 players2026-08-17 18:00 — 51 players2026-08-18 10:00 — 31 players2026-08-19 01:00 — 43 players2026-08-19 17:00 — 62 players2026-08-20 09:00 — 35 players2026-08-21 01:00 — 51 players2026-08-21 16:00 — 51 players2026-08-22 08:00 — 36 players2026-08-23 00:00 — 67 players2026-08-23 16:00 — 70 players2026-08-24 07:00 — 30 players2026-08-24 23:00 — 58 players2026-08-25 15:00 — 41 players2026-08-26 07:00 — 31 players2026-08-27 00:00 — 58 players2026-08-27 14:00 — 41 players2026-08-28 05:00 — 34 players2026-08-28 22:00 — 50 players2026-08-29 13:00 — 52 players2026-08-30 06:00 — 39 players
Concurrent players, hourly average, last 30 days (census samples).

Price history

$5.99$0.992015-01-012026-08-302015-01-01 — best price $4.992015-06-22 — best price $4.992015-12-12 — best price $5.992016-10-11 — best price $5.992017-06-21 — best price $5.992018-06-19 — best price $5.992018-11-28 — best price $5.992019-04-21 — best price $5.992019-12-03 — best price $5.992020-03-30 — best price $5.992020-09-11 — best price $5.992021-01-04 — best price $5.992021-04-12 — best price $5.992021-11-29 — best price $5.992022-02-21 — best price $5.992022-09-06 — best price $5.992022-12-13 — best price $1.492023-07-17 — best price $1.492024-01-16 — best price $5.992024-04-04 — best price $5.992024-07-11 — best price $4.992024-10-28 — best price $2.492024-12-12 — best price $2.452025-02-10 — best price $2.492025-03-27 — best price $4.992025-06-02 — best price $5.992025-08-02 — best price $5.992025-09-29 — best price $2.492025-11-25 — best price $2.392026-01-08 — best price $4.992026-02-23 — best price $4.992026-04-09 — best price $2.992026-06-02 — best price $2.992026-07-30 — best price $5.992026-08-30 — best price $2.39
Lowest recorded price across tracked stores, per day (census snapshots).

Attention

4261062026-05-30 — 136 pageviews2026-06-02 — 151 pageviews2026-06-05 — 186 pageviews2026-06-08 — 203 pageviews2026-06-11 — 197 pageviews2026-06-14 — 127 pageviews2026-06-17 — 146 pageviews2026-06-20 — 133 pageviews2026-06-23 — 137 pageviews2026-06-26 — 159 pageviews2026-06-29 — 161 pageviews2026-07-02 — 160 pageviews2026-07-05 — 136 pageviews2026-07-08 — 163 pageviews2026-07-11 — 125 pageviews2026-07-14 — 111 pageviews2026-07-17 — 248 pageviews2026-07-20 — 127 pageviews2026-07-23 — 172 pageviews2026-07-26 — 142 pageviews2026-07-29 — 182 pageviews2026-08-01 — 135 pageviews2026-08-04 — 110 pageviews2026-08-07 — 119 pageviews2026-08-10 — 165 pageviews2026-08-13 — 125 pageviews2026-08-16 — 157 pageviews2026-08-19 — 148 pageviews2026-08-22 — 138 pageviews2026-08-25 — 151 pageviews2026-08-26 — 131 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

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Similarity via IGDB.