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Ancient Planet Tower Defense

Ancient Planet Tower Defense

Ancient Planet is classic tower defense game. The stronghold of an ancient civilization has been invaded by hordes of alien raiders. Use powerful technologies of the Ancient and repel the attack of the enemy's armies!

Released Feb 3, 2015 Developer Moonlight Mouse Platforms Windows · Mac Tower DefenseStrategyCasualIndieIsometric
View on Steam ↗ $4.99 (US · as of 2026-07-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.

82.6%positive1,129 reviews
Recommended · 1 found this helpful

“This is a TD (Turret Defense) game. It has a light hearted approach to an alien invasion with characters that draw you in. Even though there are only a few panels, at the end of a mission I found myself saying, "What do you think about that Johnny? In your face with your giant…”

— a player, Steam review · 155 hrs played
Recommended · 0 found this helpful

“Great Tower Defense game.”

— a player, Steam review · 36 hrs played
Not recommended · 0 found this helpful

“Okay Tower Defense game. It doesn't do much unique from other TD games.”

— a player, Steam review · 2 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live count fetched 2026-07-24 00:02 UTC · history via SteamCharts.

7playing at last check
924-hour peak
155all-time peak
0 25 50 2016 2018 2020 2022 2024 2026 43 avg · Dec 2017

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-07-25.

47achievements
34.6%median completion
16.7%rarest: Rocketeer
78.8% of players 78.1% of players 76.2% of players 75.6% of players 75.4% of players 69.6% of players 69.2% of players 67.0% of players 67.0% of players 65.1% of players 64.8% of players 64.7% of players 59.5% of players 57.8% of players 54.8% of players 52.4% of players 50.3% of players 48.4% of players 39.8% of players 38.6% of players 36.8% of players 36.4% of players 36.1% of players 34.6% of players 34.4% of players 34.2% of players 33.6% of players 33.1% of players 32.7% of players 31.4% of players 31.3% of players 29.8% of players 28.2% of players 28.2% of players 27.6% of players 27.4% of players 26.7% of players 24.2% of players 23.9% of players 23.6% of players 22.7% of players 22.3% of players 21.9% of players 21.7% of players 20.0% of players 19.7% of players 16.7% of players 78.8% 0% most earned rarest
Almost everyone has
78.8%First blood — Kill the first Hamalian!
78.1%First border — Build two machine gun towers
76.2%Mining — Build three mines
Rarest badges of honor
16.7%Rocketeer — Build 50 missile launchers
19.7%Goodbye, Emperor — Save the planet from the democracy lantern
20.0%Something goes wrong — Destroy the Emperor's pedestal

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-25. Steam prices vary by region — always confirm your local price on Steam.

$4.99current · sampled 2026-07-26 08:39 UTC
$4.99lowest since tracking began2026-07-25
US4.99 USD
EU4.99 EUR
UK4.29 GBP
Australia7.50 AUD
Canada6.49 CAD
Japan579 JPY
Brazil16.99 BRL
China22.00 CNY

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

China≈$3.2 Brazil Japan Canada US Australia EU UK≈$5.7

Cheapest → most expensive, converted to USD at ECB reference rates (2026-07-24). Relative comparison only.

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 01, 2023
Update "Do not turn off acceleration when the next wave comes out"

In the past, when a new wave came out, the game slowed down when double speed was enabled to give players time to react. However, some of our players are so fast that they asked for the option to turn

Jan 31, 2023
Update "Clear difficulty selection"

In this update, we've made the choice of difficulty level a little clearer.

Jan 30, 2023
Update "Support for different screen ratios"

Hi everyone, in this update we've done the following: Added support for 4:3 to 16:9 aspect ratio screens Added the ability to resize the window in game window mode on aspect ratios from 4:3 to 16:9. W

Jan 24, 2023
Update "Slight improvement of window mode"

If windowed mode is selected, the next time the game is started it will start in windowed mode immediately, without temporarily switching to full-screen mode for the duration of loading.

Jan 18, 2023
Update "Cyclic Saves"

In this update we rethought game progress saving. Before this update each player profile was saved in a separate file and if this file was corrupted, the player would lose all progress. Now there are

Games like Ancient Planet Tower Defense

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

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-20.

GenresCasual, Indie, Strategy
Player tagsTower Defense · Strategy · Casual · Indie · Isometric · Comedy · Difficult · Atmospheric · Singleplayer (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Steam Trading Cards · Steam Cloud · Family Sharing
LanguagesEnglish, Russian, Simplified Chinese, Spanish - Spain, French, German, Portuguese - Brazil, Turkish, Korean, Japanese, Traditional Chinese, Ukrainian, Polish, Italian, Hungarian, Dutch, Vietnamese, Greek, Romanian, Thai,…
Achievements47
Estimated owners100,000 – 200,000 (SteamSpy)
Official sitehttps://www.facebook.com/AncientPlanetTD
Minimum system requirements (PC)

Minimum: OS *: Microsoft® Windows® XP/Vista/7 Processor: 2 Ghz Processor Memory: 1 GB RAM Storage: 200 MB available space Additional Notes: Widescreen display