The Game Census
Alien Swarm: Reactive Drop cover art

Alien Swarm: Reactive Drop

Reactive Drop Team · 2017-04-20

Steam

ActionFree To Play

Modes: Single player, Multiplayer, Co-operative

Releases: Apr 20, 2017 (PC (Microsoft Windows))

Co-operative top-down shooter game available for free. An epic bug hunt featuring a unique blend of co-op play and squad-level tactics.

136
playing now
95%
positive of 24k reviews
Very Positive
steam rating
200,000–500,000
owners (SteamSpy est.)
73/100
IGDB user rating (27 ratings)
gold
deck/linux tier (ProtonDB)
Free
steam price (US)

136 players in-game as of 2026-08-30 02:00 UTC (census sample)

Health check

Healthy
  • · 136 players in-game at the last census sample.
  • · 700 reviews in the last 8 weeks (~88/week).
  • · Review velocity down 28% vs the prior 8 weeks.
  • · Top 6% of 10,791 Action games in the census by review count.

Review momentum

PositiveNegative
44344320182026Week of 2018-01-01: 167 positiveWeek of 2018-01-01: 15 negativeWeek of 2018-02-01: 171 positiveWeek of 2018-02-01: 10 negativeWeek of 2018-03-01: 181 positiveWeek of 2018-03-01: 14 negativeWeek of 2018-04-01: 128 positiveWeek of 2018-04-01: 11 negativeWeek of 2018-05-01: 141 positiveWeek of 2018-05-01: 10 negativeWeek of 2018-06-01: 146 positiveWeek of 2018-06-01: 13 negativeWeek of 2018-07-01: 148 positiveWeek of 2018-07-01: 9 negativeWeek of 2018-08-01: 109 positiveWeek of 2018-08-01: 9 negativeWeek of 2018-09-01: 68 positiveWeek of 2018-09-01: 6 negativeWeek of 2018-10-01: 71 positiveWeek of 2018-10-01: 2 negativeWeek of 2018-11-01: 187 positiveWeek of 2018-11-01: 6 negativeWeek of 2018-12-01: 88 positiveWeek of 2018-12-01: 7 negativeWeek of 2019-01-01: 103 positiveWeek of 2019-01-01: 4 negativeWeek of 2019-02-01: 94 positiveWeek of 2019-02-01: 6 negativeWeek of 2019-03-01: 93 positiveWeek of 2019-03-01: 10 negativeWeek of 2019-04-01: 84 positiveWeek of 2019-04-01: 3 negativeWeek of 2019-05-01: 110 positiveWeek of 2019-05-01: 9 negativeWeek of 2019-06-01: 181 positiveWeek of 2019-06-01: 8 negativeWeek of 2019-07-01: 208 positiveWeek of 2019-07-01: 8 negativeWeek of 2019-08-01: 80 positiveWeek of 2019-08-01: 5 negativeWeek of 2019-09-01: 67 positiveWeek of 2019-09-01: 9 negativeWeek of 2019-10-01: 88 positiveWeek of 2019-10-01: 3 negativeWeek of 2019-11-01: 405 positiveWeek of 2019-11-01: 10 negativeWeek of 2019-12-01: 315 positiveWeek of 2019-12-01: 12 negativeWeek of 2020-01-01: 257 positiveWeek of 2020-01-01: 12 negativeWeek of 2020-02-01: 406 positiveWeek of 2020-02-01: 22 negativeWeek of 2020-03-01: 430 positiveWeek of 2020-03-01: 18 negativeWeek of 2020-04-01: 443 positiveWeek of 2020-04-01: 21 negativeWeek of 2020-05-01: 316 positiveWeek of 2020-05-01: 18 negativeWeek of 2020-06-01: 240 positiveWeek of 2020-06-01: 9 negativeWeek of 2020-07-01: 279 positiveWeek of 2020-07-01: 9 negativeWeek of 2020-08-01: 290 positiveWeek of 2020-08-01: 10 negativeWeek of 2020-09-01: 169 positiveWeek of 2020-09-01: 6 negativeWeek of 2020-10-01: 221 positiveWeek of 2020-10-01: 10 negativeWeek of 2020-11-01: 236 positiveWeek of 2020-11-01: 4 negativeWeek of 2020-12-01: 213 positiveWeek of 2020-12-01: 10 negativeWeek of 2021-01-01: 278 positiveWeek of 2021-01-01: 16 negativeWeek of 2021-02-01: 264 positiveWeek of 2021-02-01: 10 negativeWeek of 2021-03-01: 253 positiveWeek of 2021-03-01: 13 negativeWeek of 2021-04-01: 197 positiveWeek of 2021-04-01: 9 negativeWeek of 2021-05-01: 221 positiveWeek of 2021-05-01: 4 negativeWeek of 2021-06-01: 198 positiveWeek of 2021-06-01: 9 negativeWeek of 2021-07-01: 211 positiveWeek of 2021-07-01: 19 negativeWeek of 2021-08-01: 229 positiveWeek of 2021-08-01: 7 negativeWeek of 2021-09-01: 217 positiveWeek of 2021-09-01: 8 negativeWeek of 2021-10-01: 195 positiveWeek of 2021-10-01: 11 negativeWeek of 2021-11-01: 218 positiveWeek of 2021-11-01: 10 negativeWeek of 2021-12-01: 180 positiveWeek of 2021-12-01: 10 negativeWeek of 2022-01-01: 229 positiveWeek of 2022-01-01: 14 negativeWeek of 2022-02-01: 225 positiveWeek of 2022-02-01: 13 negativeWeek of 2022-03-01: 153 positiveWeek of 2022-03-01: 10 negativeWeek of 2022-04-01: 252 positiveWeek of 2022-04-01: 18 negativeWeek of 2022-05-01: 286 positiveWeek of 2022-05-01: 18 negativeWeek of 2022-06-01: 227 positiveWeek of 2022-06-01: 10 negativeWeek of 2022-07-01: 228 positiveWeek of 2022-07-01: 16 negativeWeek of 2022-08-01: 218 positiveWeek of 2022-08-01: 16 negativeWeek of 2022-09-01: 128 positiveWeek of 2022-09-01: 5 negativeWeek of 2022-10-01: 185 positiveWeek of 2022-10-01: 9 negativeWeek of 2022-11-01: 294 positiveWeek of 2022-11-01: 14 negativeWeek of 2022-12-01: 401 positiveWeek of 2022-12-01: 10 negativeWeek of 2023-01-01: 354 positiveWeek of 2023-01-01: 17 negativeWeek of 2023-02-01: 277 positiveWeek of 2023-02-01: 15 negativeWeek of 2023-03-01: 194 positiveWeek of 2023-03-01: 13 negativeWeek of 2023-04-01: 223 positiveWeek of 2023-04-01: 18 negativeWeek of 2023-05-01: 223 positiveWeek of 2023-05-01: 18 negativeWeek of 2023-06-01: 235 positiveWeek of 2023-06-01: 11 negativeWeek of 2023-07-01: 238 positiveWeek of 2023-07-01: 24 negativeWeek of 2023-08-01: 204 positiveWeek of 2023-08-01: 13 negativeWeek of 2023-09-01: 169 positiveWeek of 2023-09-01: 11 negativeWeek of 2023-10-01: 166 positiveWeek of 2023-10-01: 9 negativeWeek of 2023-11-01: 233 positiveWeek of 2023-11-01: 14 negativeWeek of 2023-12-01: 190 positiveWeek of 2023-12-01: 14 negativeWeek of 2024-01-01: 154 positiveWeek of 2024-01-01: 15 negativeWeek of 2024-02-01: 182 positiveWeek of 2024-02-01: 7 negativeWeek of 2024-03-01: 145 positiveWeek of 2024-03-01: 10 negativeWeek of 2024-04-01: 164 positiveWeek of 2024-04-01: 8 negativeWeek of 2024-05-01: 127 positiveWeek of 2024-05-01: 7 negativeWeek of 2024-06-01: 132 positiveWeek of 2024-06-01: 11 negativeWeek of 2024-07-01: 174 positiveWeek of 2024-07-01: 13 negativeWeek of 2024-08-01: 183 positiveWeek of 2024-08-01: 7 negativeWeek of 2024-09-01: 142 positiveWeek of 2024-09-01: 9 negativeWeek of 2024-10-01: 124 positiveWeek of 2024-10-01: 4 negativeWeek of 2024-11-01: 182 positiveWeek of 2024-11-01: 14 negativeWeek of 2024-12-01: 117 positiveWeek of 2024-12-01: 8 negativeWeek of 2025-01-01: 119 positiveWeek of 2025-01-01: 14 negativeWeek of 2025-02-01: 116 positiveWeek of 2025-02-01: 7 negativeWeek of 2025-03-01: 92 positiveWeek of 2025-03-01: 5 negativeWeek of 2025-04-01: 103 positiveWeek of 2025-04-01: 5 negativeWeek of 2025-05-01: 115 positiveWeek of 2025-05-01: 8 negativeWeek of 2025-06-01: 106 positiveWeek of 2025-06-01: 6 negativeWeek of 2025-07-01: 122 positiveWeek of 2025-07-01: 8 negativeWeek of 2025-08-01: 111 positiveWeek of 2025-08-01: 9 negativeWeek of 2025-09-01: 97 positiveWeek of 2025-09-01: 12 negativeWeek of 2025-10-01: 98 positiveWeek of 2025-10-01: 3 negativeWeek of 2025-11-01: 160 positiveWeek of 2025-11-01: 7 negativeWeek of 2025-12-01: 93 positiveWeek of 2025-12-01: 4 negativeWeek of 2026-01-01: 71 positiveWeek of 2026-01-01: 8 negativeWeek of 2026-02-01: 99 positiveWeek of 2026-02-01: 8 negativeWeek of 2026-03-01: 66 positiveWeek of 2026-03-01: 4 negativeWeek of 2026-04-01: 72 positiveWeek of 2026-04-01: 4 negativeWeek of 2026-05-01: 81 positiveWeek of 2026-05-01: 6 negativeWeek of 2026-06-01: 87 positiveWeek of 2026-06-01: 2 negativeWeek of 2026-07-01: 90 positiveWeek of 2026-07-01: 5 negativeWeek of 2026-08-01: 53 positiveWeek of 2026-08-01: 4 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

321492026-08-06 23:00 — 49 players2026-08-07 07:00 — 148 players2026-08-07 15:00 — 299 players2026-08-07 23:00 — 61 players2026-08-08 07:00 — 196 players2026-08-08 15:00 — 260 players2026-08-08 23:00 — 100 players2026-08-09 07:00 — 197 players2026-08-09 15:00 — 248 players2026-08-09 23:00 — 106 players2026-08-10 07:00 — 166 players2026-08-10 16:00 — 164 players2026-08-11 00:00 — 61 players2026-08-11 08:00 — 145 players2026-08-11 16:00 — 155 players2026-08-12 23:00 — 86 players2026-08-14 07:00 — 149 players2026-08-15 15:00 — 294 players2026-08-16 23:00 — 122 players2026-08-18 06:00 — 122 players2026-08-19 13:00 — 259 players2026-08-20 20:00 — 128 players2026-08-22 04:00 — 140 players2026-08-23 11:00 — 219 players2026-08-24 19:00 — 157 players2026-08-26 03:00 — 114 players2026-08-27 11:00 — 174 players2026-08-28 18:00 — 138 players2026-08-30 02:00 — 136 players
Concurrent players, hourly average, last 30 days (census samples).

Twitch viewers

2002026-08-26 19:15 — 4 viewers2026-08-26 20:34 — 0 viewers2026-08-26 22:34 — 1 viewers2026-08-27 01:34 — 8 viewers2026-08-27 03:34 — 0 viewers2026-08-27 05:34 — 0 viewers2026-08-27 07:33 — 0 viewers2026-08-27 09:33 — 0 viewers2026-08-27 11:34 — 0 viewers2026-08-27 13:34 — 0 viewers2026-08-27 15:34 — 0 viewers2026-08-27 17:34 — 5 viewers2026-08-27 19:34 — 1 viewers2026-08-27 22:34 — 0 viewers2026-08-28 00:34 — 0 viewers2026-08-28 02:34 — 0 viewers2026-08-29 12:35 — 0 viewers2026-08-29 14:34 — 0 viewers2026-08-29 16:34 — 1 viewers2026-08-29 18:34 — 1 viewers2026-08-29 21:34 — 1 viewers2026-08-29 23:34 — 5 viewers2026-08-30 01:34 — 0 viewers2026-08-30 02:34 — 0 viewers
Hourly Twitch viewers (census snapshots).

Completion

60+
achievements tracked
67.5%
earned "Technician Secured"
9.4%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsFull controller supportSingle-playerMulti-playerPvPOnline PvPLAN PvPCo-opOnline Co-opLAN Co-opSteam AchievementsFull controller support

13 supported languages: English, French, Italian, German, Spanish - Spain, Korean, Portuguese - Portugal, Russian, Simplified Chinese, Traditional Chinese, Ukrainian, Vietnamese…

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)46,5230%198

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

PvEPvPCo-opAliensHackingShooterModdableTop-DownClass-BasedFirst-Person

Census log

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

Recent updates

Players also track

Immortal: UnchainedLEFT ALIVE™Rebel Galaxy OutlawEARTH DEFENSE FORCE: IRON RAINWolfenstein: Youngblood

Similarity via IGDB.

Official site ↗Discord ↗Speedruns ↗