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Alien Shooter TD

Alien Shooter TD

Innovative Tower Defense inspired by legendary Alien Shooter series! The game was created in keeping with the best traditions of Sigma`s games, no concessions of any kind - everything is just like in real life!

Released Jan 13, 2017 Developer Sigma Team Inc. Platforms Windows Tower DefenseGoreStrategyActionBlood
View on Steam ↗ $9.99 (US · as of 2026-09-25)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-02 · quoted reviews as of 2026-05-13.

85.3%positive916 reviews
Recommended · 0 found this helpful

“It's a fun TD game, and as much as I love the genre, I have to admit I absolutely do not like about 95% of the TD games I've played over the last 15 years or so. So if I like a TD game, it's a rare treat. This game is simple, you use soldiers instead of towers, but functionally…”

— a player, Steam review · 21 hrs played
Recommended · 0 found this helpful

“Super fun and addictive TD with a great atmosphere and loads of cool upgrades”

— a player, Steam review · 29 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-07 via SteamCharts.

925all-time peak
0 50 100 2018 2020 2022 2024 2026 No data collected for this period 48 avg · Mar 2023

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-19.

21achievements
11.3%median completion
4.8%rarest: Miner
24.8% of players 24.7% of players 22.7% of players 18.9% of players 15.0% of players 14.6% of players 14.1% of players 12.9% of players 12.7% of players 12.0% of players 11.3% of players 7.8% of players 7.7% of players 7.6% of players 6.6% of players 6.3% of players 6.1% of players 5.5% of players 5.2% of players 4.8% of players 4.8% of players 24.8% 0% most earned rarest
Almost everyone has
24.8%Serial killer — Wipe out 1000 aliens.
24.7%Rich man — Mission earnings: 10000
22.7%Sergeant — Complete 5 different missions on any difficulty level.
Rarest badges of honor
4.8%Miner — Complete 5 different missions on any difficulty level using only mines and explosives.
4.8%Annihilator — Wipe out 250000 aliens.
5.2%Tactician — Complete 5 different missions on any difficulty level using only Tactical Forces.

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-08-12. Steam prices vary by region — always confirm your local price on Steam.

$9.99current · sampled 2026-09-25 21:36 UTC
$9.99lowest since tracking began2026-08-12
US9.99 USD
EU10.25 EUR
UK9.09 GBP
Australia13.95 AUD
Canada11.99 CAD
Japan1,350 JPY
Brazil37.49 BRL
China42.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

China≈$6.3 Brazil Canada Japan Australia US EU UK≈$12

Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-25). Relative comparison only.

$0 $10 $20 08-12 08-21 08-30 09-08 09-16 09-25

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Feb 12, 2019
Version 1.3.0 available!

Shadows support added. Two times less monster kills required for the Annihilator achievement. Minor upgrades and bugfixes.

Oct 10, 2017
Version 1.2.8 available!

What`s new: - Korean localization added. Special thanks to: dollppin AirQuick ThurSday 픗힝 vitamin RANEYO chanro89 - "Blood" option added to the settings menu. We thank all the players helping us to im

Oct 10, 2017
Version 1.2.8 available!

What`s new: - Korean localization added. Special thanks to: dollppin AirQuick ThurSday 픗힝 vitamin RANEYO chanro89 - "Blood" option added to the settings menu. We thank all the players helping us to im

May 04, 2017
Version 1.2.4 available!

More and more players complete the Alien Shooter TD story line and ask us to diversify the process of replaying missions at higher difficulty. We're happy to announce that now killing the final not on

May 04, 2017
Version 1.2.4 available!

More and more players complete the Alien Shooter TD story line and ask us to diversify the process of replaying missions at higher difficulty. We're happy to announce that now killing the final not on

Games like Alien Shooter TD

From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.

Let Them Come Let Them Come 84.1% · 772 reviews shares Aliens, Tower Defense, Gore, Violent Alien Shooter Alien Shooter 92.7% · 1,048 reviews shares Blood, Aliens, Isometric, Gore Aliens vs. Predator™ Aliens vs. Predator™ 90.3% · 10,568 reviews shares Blood, Aliens, Gore, Survival Shadow Tactics: Aiko's Choice Shadow Tactics: Aiko's Choice 93.2% · 1,449 reviews shares Real Time Tactics, Military, Isometric, Building Dead Space™ 2 Dead Space™ 2 93.3% · 13,353 reviews shares Blood, Aliens, Gore, Survival Dead Space Dead Space 89.8% · 33,066 reviews shares Blood, Aliens, Violent, Survival Aliens: Dark Descent Aliens: Dark Descent 87.8% · 10,888 reviews shares Real Time Tactics, Aliens, Isometric, Violent Alien Shooter 2: Reloaded Alien Shooter 2: Reloaded 90.1% · 868 reviews shares Aliens, Isometric, Gore, Survival

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-13.

GenresAction, Indie, Strategy
Player tagsTower Defense · Gore · Strategy · Action · Blood · Shooter · Sci-fi · Survival · Real Time Tactics · Violent · Aliens · Indie (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Steam Trading Cards · Steam Cloud · Stats · Steam Leaderboards · Family Sharing
LanguagesEnglish, Russian, Korean
Achievements21
Official sitehttp://www.sigma-team.net
Minimum system requirements (PC)

Minimum: OS *: Windows 7 (service pack 1), 8, 10 Processor: Intel Core 2 Duo T5200 @1.6GHz / AMD Athlon 64 X2 3600+ @2000MHz or better Memory: 2 GB RAM Graphics: 512 MB video card Storage: 500 MB available space