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AI War 2

AI War 2

The most devious and acclaimed artificial intelligence in strategy gaming is better than ever. A grand strategy/RTS hybrid that reverses many conventions of both genres. Take territory without attracting attention, build your empire with care, and adapt to an ever-evolving galactic battleground.

In short, Steam reviewers most often praise “Deep asymmetric strategic systems” (46 of 95 reviews) and “Brutal but adjustable challenge” (15); the most common complaint is “Steep, overwhelming learning curve” (24). What reviewers agree on ↓

Released Oct 22, 2019 Developer Arcen Games Platforms Windows · Mac · Linux 4XGrand StrategyMultiplayerTower DefenseCo-op
View on Steam ↗ $19.99 (US · as of 2026-10-22)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-27 · quoted reviews as of 2026-05-13.

87.3%positive1,563 reviews

What reviewers agree on

Praised
Criticised
Bar length = how many of the 95 reviews raise the point On criticised points, the pale part = reviewers who still recommend the game Select a point to see the exact counts and what reviewers wrote.

Counted across 95 English reviews, sampled to match this game's 87.3% positive rating · as of 2026-05-13

Recommended · 25 found this helpful

“The apex of multi-threaded, well designed AI combined with a mechanically unique asymmetric guerilla-war RTS. You will not find an experience like AI War 2 anywhere else. Don't worry about having Starcraft-tournament level clicks-per-minute, this RTS focuses more on strategy and…”

— a player, Steam review · 196 hrs played
Recommended · 4 found this helpful

“Absolute masterpiece. My only problem with the game is that I took too long to give it a try and that I just can't ♥♥♥♥♥♥♥ put it down. 11/10 will spend a half hour paused pondering my next move again. and again. and again. and again. Oh and I've barely scratched the surface.…”

— a player, Steam review · 35 hrs played
Recommended · 1 found this helpful

“I sure wish i was smart enough for this game. It's super fun, though!”

— a player, Steam review · 4 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-06 via SteamCharts.

310all-time peak
0 50 100 2019 2021 2023 2025 No data collected for this period 63 avg · May 2021

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-10-22.

255achievements
0.7%median completion
0.3%rarest: I Thought I Was The Protagonist
23.9% of players 17.0% of players 11.0% of players 8.5% of players 6.8% of players 5.2% of players 4.6% of players 3.5% of players 3.1% of players 2.7% of players 2.4% of players 2.2% of players 1.8% of players 1.7% of players 1.5% of players 1.3% of players 1.1% of players 1.0% of players 0.9% of players 0.9% of players 0.9% of players 0.8% of players 0.8% of players 0.8% of players 0.8% of players 0.8% of players 0.8% of players 0.8% of players 0.8% of players 0.8% of players 0.7% of players 0.7% of players 0.7% of players 0.7% of players 0.7% of players 0.7% of players 0.7% of players 0.7% of players 0.7% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.6% of players 0.5% of players 0.5% of players 0.5% of players 0.5% of players 0.4% of players 0.4% of players 0.4% of players 0.4% of players 0.4% of players 0.4% of players 0.4% of players 0.4% of players 23.9% 0% most earned rarest
Almost everyone has
23.9%Research Grant — Hack an Advanced Research Station to grant a new ship line.
21.8%Give a Man a Fish... — Spend science to mark up a single Command Station or Battlestation.
21.7%Lots Of Energy — Have 1 million energy.
Rarest badges of honor
0.3%I Thought I Was The Protagonist — Beat the Heroic AI on difficulty >= 9.
0.3%And I Thought Snipers Had Long Range — Steal a Chromatic Spire Interplanetary Weapon.
0.3%It's A Marathon Not A Sprint — Beat the Speedster AI on difficulty >= 9.

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.

$19.99current · sampled 2026-10-22 11:56 UTC
$4.99lowest since tracking began2026-07-20
US19.99 USD
EU19.50 EUR
UK16.75 GBP
Australia29.50 AUD
Canada25.99 CAD
Japan2,300 JPY
Brazil59.99 BRL
China76.00 CNY

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

China≈$11 Brazil Japan Canada US Australia EU UK≈$22

Cheapest → most expensive, converted to USD at ECB reference rates (2026-10-22). Relative comparison only.

$0 $25 $50 07-11 07-31 08-20 09-10 09-30 10-22

Latest official news

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

Oct 17, 2026
5.846 Coilbeams And Civilian Industries

Full release notes here . A variety of bugfixes and tweaks. All thanks to Badger as usual. Enjoy! 5.846 Changelog Add some additional logging to MP connections to help debug an issue for one user Make

Oct 14, 2026
5.843 Hacking And Topology

Full release notes here . A variety of bugfixes and tweaks. All thanks to Badger as usual. Enjoy! 5.843 Changelog Bugfixes Add some defensive code to the hacking menu Multiplayer Some bugfixes to make

Oct 08, 2026
5.841 Intelligence Tweaks

Full release notes here . Tweaks and refinements to logic the UI and also unit intelligence. All thanks to Badger as usual. Enjoy! 5.841 Changelog Bugfixes Add some tooltips for more sidebar elements

Sep 29, 2026
5.838 Classic Returns

Full release notes here . On the surface, just a few changes. That said, in the Classic Fusion mod, Badger has added a preview for a new feature that will be rolling out for the game at large in a few

Sep 24, 2026
5.834 Stack And Ward

Full release notes here . A number of bugfixes, and a couple of visual improvements. All of this is thanks to Badger. Enjoy! 5.834 Changelog General Some improvements to the stacking algorithm Fix a b

Games like AI War 2

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

Terra Invicta Terra Invicta 82.8% · 6,719 reviews shares 4x, Grand Strategy, Moddable, Economy Old World Old World 84.1% · 4,221 reviews shares 4x, Grand Strategy, Moddable, Economy Breachway Breachway 80.2% · 954 reviews shares 4x, Grand Strategy, Moddable, Military Dune: Spice Wars Dune: Spice Wars 78.7% · 8,233 reviews shares 4x, Grand Strategy, Real Time Tactics, Economy Sins of a Solar Empire®: Rebellion Sins of a Solar Empire®: Rebellion 94.3% · 11,055 reviews shares 4x, Grand Strategy, RTS, Military Distant Worlds: Universe Distant Worlds: Universe 74.4% · 1,499 reviews shares 4x, Real Time, Grand Strategy, Moddable Total War: MEDIEVAL II – Definitive Edition Total War: MEDIEVAL II – Definitive Edition 95.7% · 21,398 reviews shares 4x, Grand Strategy, Moddable, Real Time Tactics Cataclismo Cataclismo 89.0% · 2,361 reviews shares 4x, Grand Strategy, Moddable, Economy

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-12.

GenresIndie, Simulation, Strategy
Player tags4X · Grand Strategy · Multiplayer · Tower Defense · Co-op · RTS · Real Time Tactics · Economy · Management · Military · Sci-fi · Space (SteamSpy community voting)
FeaturesSingle-player · Multi-player · Co-op · Online Co-op · LAN Co-op · Cross-Platform Multiplayer · Steam Achievements · Steam Trading Cards
LanguagesEnglish * *
Achievements255
Official sitehttps://wiki.arcengames.com/index.php?title=AI_War_2:AI_War_2
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS *: Windows 7, 8.1, or 10 64bit Processor: Dual Core 64bit CPU (2.2+ GHz Dual Core CPU or better) Memory: 4 GB RAM Graphics: NVIDIA GTX 510+, Radeon HD5900+, or Intel HD4000+ DirectX: Version 11 Storage: 4 GB available space