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Creeper World 3: Arc Eternal

Creeper World 3: Arc Eternal

Creeper World 3 is what happens when cellular automata takes over a strategy simulation. Instead of discrete units that attack your base, a fluid-like substance spreads over the terraformable terrain. Your base, your weapons, your strategy... you must adapt them all.

Released Mar 27, 2014 Developer Knuckle Cracker Platforms Windows · Mac · Linux Tower DefenseStrategyIndieRTSSingleplayer
View on Steam ↗ $14.99 (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.

96.6%positive4,647 reviews
Recommended · 1 found this helpful

“Peak Game. You gotta play it at least once. Then listen to the OST a few times. It all about the Mortars Baby”

— a player, Steam review · 53 hrs played
Recommended · 2 found this helpful

“Creeper World is an old franchise that managed to stand out in the ocean of tower defense games back when the genre was all the hype. What makes this game unique is the [b]freedom to build[/b] anywhere and the unusual [b]liquid nature[/b] of its enemies. That uniqueness remains…”

— a player, Steam review · 168 hrs played
Recommended · 1 found this helpful

“Bro thinks life is all cupcakes and rainbows. wait till he realizes the creeper cannot be stopped”

— a player, Steam review · 28 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live count fetched 2026-07-11 11:14 UTC · history via SteamCharts.

137playing at last check
17924-hour peak
3,265all-time peak
0 500 1k 2015 2017 2019 2021 2023 2025 517 avg · Jun 2015

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.

139achievements
18.1%median completion
0.9%rarest: Machine Lover
98.9% of players 97.4% of players 96.6% of players 93.1% of players 88.5% of players 83.4% of players 80.9% of players 76.2% of players 75.2% of players 74.0% of players 65.6% of players 61.5% of players 60.9% of players 59.7% of players 53.8% of players 53.0% of players 50.8% of players 48.1% of players 47.5% of players 44.2% of players 42.3% of players 37.0% of players 36.0% of players 33.6% of players 33.1% of players 32.3% of players 32.1% of players 29.4% of players 26.2% of players 25.3% of players 24.2% of players 22.8% of players 22.2% of players 19.3% of players 18.9% of players 18.1% of players 17.9% of players 16.2% of players 15.2% of players 12.4% of players 11.6% of players 10.9% of players 10.1% of players 9.5% of players 8.7% of players 8.3% of players 8.1% of players 8.0% of players 7.1% of players 6.7% of players 6.1% of players 5.6% of players 5.2% of players 4.9% of players 4.6% of players 4.2% of players 4.0% of players 3.9% of players 3.7% of players 3.5% of players 98.9% 0% most earned rarest
Almost everyone has
98.9%Arc Eternal Pioneer — Enter Arc Eternal
97.6%First Collector — Built first Collector
97.4%First Pulse Cannon — Built first Pulse Cannon
Rarest badges of honor
0.9%Machine Lover — Completed 100 DMD Missions
1.2%Dr. Jones — Collected 500 AoO in Prospector Zone
1.4%Uninhibited Nihilist — Destroyed 50 Inhibitors in Tormented Space

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-11. Steam prices vary by region — always confirm your local price on Steam.

$14.99current · sampled 2026-07-26 08:39 UTC
$14.99lowest since tracking began2026-07-11
US14.99 USD
EU14.79 EUR
UK12.79 GBP
Australia21.95 AUD
Canada19.49 CAD
Japan1,700 JPY
Brazil46.99 BRL
China58.00 CNY

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

China≈$8.6 Brazil Japan Canada US Australia EU UK≈$17

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

$0 $10 $20 07-11 07-13 07-16 07-19 07-22 07-26

Latest official news

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

Mar 22, 2026
Score posting patch

Update to address some connectivity issues when posting scores/ratings/etc.

Dec 12, 2024
Creeper World IXE Joins the Fight

Creeper World IXE has released! Join the battle in this latest installment...

Dec 12, 2024
Creeper World IXE Now Available!

Just in time for the holidays, the latest battle against the Creeper has begun! https://clan.fastly.steamstatic.com/images/32938698/486e9baabf4cc5700d61b30178825e618af8b91f.png

Apr 20, 2018
Revenge

http://knucklecracker.com/blog/index.php/2018/04/revenge/ Follow along as the next game in the Creeper World series is developed. Watch as Virgil finally beats a mission while commenting on new featur

Feb 28, 2016
Creeper World 3 version 2.12

CW3 Version 2.12 Rebuilt with Unity 5. May address some rare issues some folks see with game startup. Linked with latest Steam APIS. May also help with some startup issues.

Games like Creeper World 3: Arc Eternal

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

Rise to Ruins Rise to Ruins 88.0% · 5,479 reviews shares Level Editor, Tower Defense, Base Building, Resource Management Particle Fleet: Emergence Particle Fleet: Emergence 92.1% · 1,072 reviews shares Real Time With Pause, Level Editor, RTS, Tower Defense Gnomoria Gnomoria 73.7% · 2,642 reviews shares Addictive, RTS, Base Building, Resource Management Rusted Warfare - RTS Rusted Warfare - RTS 97.0% · 3,229 reviews shares Real Time With Pause, Real Time, RTS, Tower Defense Buggos Buggos 87.7% · 1,166 reviews shares Level Editor, RTS, Base Building, Resource Management Judgment: Apocalypse Survival Simulation Judgment: Apocalypse Survival Simulation 81.1% · 1,188 reviews shares Real Time With Pause, Base Building, Resource Management, Sandbox Mindustry Mindustry 95.0% · 10,755 reviews shares RTS, Tower Defense, Base Building, Resource Management From Glory To Goo From Glory To Goo 97.2% · 1,326 reviews shares Real Time With Pause, RTS, Tower Defense, Base Building

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

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

GenresIndie, Simulation, Strategy
Player tagsTower Defense · Strategy · Indie · RTS · Singleplayer · Sci-fi · Real-Time with Pause · Simulation · Base-Building · Level Editor · Top-Down · Addictive (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Steam Cloud · Stats · Includes level editor · Remote Play Together · Family Sharing
LanguagesEnglish
Achievements139
Estimated owners200,000 – 500,000 (SteamSpy)
Official sitehttp://knucklecracker.com
Minimum system requirements (PC)

Minimum: OS *: Windows XP Processor: Single Core 2 GHz Memory: 1 GB RAM Graphics: Shader Model 2.0 or better DirectX: Version 9.0c Storage: 500 MB available space