The Game Census
Galactic Missile Defense cover art

Galactic Missile Defense

Black Sheep Games · 2017-06-07

Steam

ActionCasualIndieStrategy

Modes: Single player

Releases: Jun 08, 2017 (Mac), Jun 08, 2017 (Linux), Jun 08, 2017 (PC (Microsoft Windows))

Galactic Missile Defense is a shooter and tower defense game, where you must protect Earth from the invading Martians that declared war on our planet just because a space rover accidentally ruined their picnic!

Galactic Missile Defense is an Action, Casual, Indie and Strategy game released in 2017, priced at $1.99, with an estimated 50,000 to 100,000 owners and Mixed (59% of 58 reviews) sentiment.

0
playing now
59%
positive of 58 reviews
Mixed
steam's rating (official)
50,000–100,000
owners (SteamSpy est.)
50/100
IGDB user rating (0 ratings)
$1.99
steam price (US)

0 players in-game as of 2026-10-15 11:00 UTC (census sample)

Health check

Quiet
  • · 0 players in-game at the last census sample.
  • · 6 reviews in the last 8 weeks (~1/week).
  • · Review velocity down 14% vs the prior 8 weeks.
  • · Top 48% of 28,061 Action games in the census by review count.

Health tier since 2026-09-02

Estimated sales: 1.4k–3.5k copies

Review-multiple estimate from 58 total reviews — how this is computed.

All-time low: $0.49 at Steam (2018-12-21) · bundled 3×via IsThereAnyDeal

12-month high $1.99 · on sale 6 of 12 observed days (census price snapshots)

Review momentum

PositiveNegative
3320172026Week of 2017-06-01: 1 positiveWeek of 2017-06-01: 1 negativeWeek of 2017-10-01: 3 positiveWeek of 2018-02-01: 1 negativeWeek of 2018-05-01: 1 negativeWeek of 2018-12-01: 1 negativeWeek of 2019-01-01: 1 positiveWeek of 2019-01-01: 1 negativeWeek of 2019-02-01: 1 negativeWeek of 2019-07-01: 1 positiveWeek of 2020-08-01: 1 negativeWeek of 2020-10-01: 1 negativeWeek of 2021-01-01: 1 positiveWeek of 2021-11-01: 1 positiveWeek of 2022-03-01: 1 positiveWeek of 2022-06-01: 1 positiveWeek of 2022-07-01: 1 positiveWeek of 2022-08-01: 1 positiveWeek of 2022-09-01: 1 positiveWeek of 2023-04-01: 1 positiveWeek of 2023-08-01: 1 negativeWeek of 2024-01-01: 1 positiveWeek of 2024-02-01: 1 positiveWeek of 2024-08-01: 1 negativeWeek of 2024-10-01: 1 positiveWeek of 2025-02-01: 1 positiveWeek of 2025-04-01: 1 positiveWeek of 2026-06-01: 1 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

102026-09-15 20:00 — 0 players2026-09-17 05:00 — 0 players2026-09-18 12:00 — 0 players2026-09-19 20:00 — 0 players2026-09-21 03:00 — 0 players2026-09-22 11:00 — 0 players2026-09-23 18:00 — 0 players2026-09-25 02:00 — 0 players2026-09-26 09:00 — 0 players2026-09-27 17:00 — 0 players2026-09-29 00:00 — 0 players2026-09-30 08:00 — 0 players2026-10-01 15:00 — 0 players2026-10-02 23:00 — 0 players2026-10-04 07:00 — 0 players2026-10-05 15:00 — 0 players2026-10-06 22:00 — 0 players2026-10-08 06:00 — 1 players2026-10-09 13:00 — 0 players2026-10-10 21:00 — 0 players2026-10-12 04:00 — 0 players2026-10-13 12:00 — 0 players2026-10-14 19:00 — 0 players2026-10-15 11:00 — 0 players
Concurrent players, hourly average, last 30 days (census samples).
200Apr 2016Sep 2023Apr 2016 — avg 0 · peak 0Mar 2017 — avg 0 · peak 1Jun 2017 — avg 0 · peak 6Aug 2017 — avg 2 · peak 8Oct 2017 — avg 0 · peak 4Dec 2017 — avg 0 · peak 3Feb 2018 — avg 0 · peak 3Apr 2018 — avg 0 · peak 3Jun 2018 — avg 0 · peak 2Aug 2018 — avg 0 · peak 2Oct 2018 — avg 0 · peak 3Dec 2018 — avg 0 · peak 5Feb 2019 — avg 2 · peak 13Apr 2019 — avg 0 · peak 3Jun 2019 — avg 0 · peak 3Aug 2019 — avg 0 · peak 2Jul 2020 — avg 0 · peak 2Nov 2020 — avg 1 · peak 24Jan 2022 — avg 4 · peak 58Jul 2022 — avg 11 · peak 256Sep 2023 — avg 1 · peak 2

▼ −19 avg players (−96.1%) vs prior month — Sep 2023

Monthly average players (source: steamcharts.com) — history via steamcharts.com; live census sampling since Aug 2026.

Price history

$1.99$0.492017-06-082026-08-242017-06-08 — best price $1.592017-11-01 — best price $1.992017-12-21 — best price $0.992018-02-19 — best price $1.992018-10-29 — best price $0.992018-11-27 — best price $1.992019-01-14 — best price $0.792019-07-09 — best price $1.992019-11-26 — best price $0.792020-01-02 — best price $1.992020-06-25 — best price $0.492020-11-02 — best price $1.992020-12-22 — best price $0.992021-02-15 — best price $1.992021-08-30 — best price $1.492021-11-24 — best price $0.792022-01-05 — best price $1.992022-06-23 — best price $0.512022-11-29 — best price $1.992023-03-16 — best price $0.992023-07-13 — best price $1.992023-11-21 — best price $1.492024-01-04 — best price $1.992024-07-29 — best price $0.612024-10-30 — best price $1.992024-12-19 — best price $0.612025-03-20 — best price $1.992025-07-28 — best price $0.992025-10-06 — best price $1.992026-03-09 — best price $0.552026-03-26 — best price $1.992026-06-25 — best price $0.992026-08-24 — best price $1.99
Lowest recorded price across tracked stores, per day (census snapshots).

Completion

10
achievements tracked
7.8%
earned "Master the Basics"
2.2%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsmacOSLinuxSingle-playerSteam AchievementsSteam Trading CardsSteam CloudStatsSteam LeaderboardsFamily Sharing

1 supported languages: English

Player tags

2DMarsIndieActionAliensArcadeCasualClickerShooterStrategy

Census log

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

Players also track

Star Control®: OriginsSupreme Ruler UltimateSurvivalistReverse CrawlMedieval Kingdom WarsOctogeddonBronze Age - HD EditionApsulov: End of Gods

Similarity via IGDB.

Official site ↗