Combined Arms Operations Series

Combined Arms Operations Series

Nemeton Singularity Simulations · June 21, 2021 · Simulation, Strategy, Turn-Based Strategy, World War II, Wargame

Buy Combined Arms Operations Series from Steam at $19.99 — the cheapest of 1 store we compare.

PC
Positive92% · 25
Best price
$19.99
lowest tracked $13.99
Steam Buy at Steam

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Where to buy Combined Arms Operations Series — official stores

Steam
Steam
Standard Edition · Steam
$19.99
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Combined Arms Operations Series price by region

Combined Arms Operations Series costs £15.49 in the United Kingdom, €16.79 in Europe (EUR), $19.99 in the United States, $19.99 in Georgia (USD), CA$22.79 in Canada, NZ$24.79 in New Zealand, A$28.95 in Australia, R$37.99 in Brazil and zł71.99 in Poland right now.

Cheapest Combined Arms Operations Series offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
United Kingdom £15.49 £15.49 — 1
Europe (EUR) €16.79 €16.79 — 1
United Statesyour region $19.99 $19.99 — 1
Georgia (USD) $19.99 $19.99 — 1
Canada CA$22.79 CA$22.79 — 1
New Zealand NZ$24.79 NZ$24.79 — 1
Australia A$28.95 A$28.95 — 1
Brazil R$37.99 R$37.99 — 1
Poland zł71.99 zł71.99 — 1

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

About Combined Arms Operations Series

The Combined Arms Operations Series (CAOS) uses simultaneous turns to simulate operational level combat between World War II armies across national boundaries and years. Ever wanted to see Soviet and US forces face off in 1945? Or Germany 1939 versus Italy 1942? Here’s your shot.

Follow historical doctrines or rewrite them entirely as you reorganize historical armies to match your command style. See for yourself how the Soviet army could perform in 1941 outside the confines of Operation Barbarossa. Mix and match units from across the German army to create the ultimate combined arms kampfgruppe in 1944. Mass enough American artillery to blot out the sun. Whatever your playstyle, CAOS is happy to provide, with more than 4000 unique units and 580 historically accurate division and brigade formations.

Scenarios in CAOS are fast paced and self-contained. Players can choose between anything from small battles between a couple divisions that can be played in under and hour, to sprawling army level battles involving dozens of divisions and hundreds of units that can be played across several days. Multiplayer scenarios are synchronous, allowing you to see your ally issue orders in real time, easily coordinate your battleplans, and even transfer control of units between players.

Simulate Operational Combat:


CAOS uses simultaneous turn resolution and highly mobile combat to recreate the chaotic nature of combined arms warfare in a turn-based strategy game. Use armored spearheads to smash through enemy lines and create deep encirclements. Infiltrate commandos through rugged mountains to cut off hostile lines of supply. Pound enemies into submission from afar with artillery and aircraft. Destroy bridges, build fortifications, and construct minefields to force your rivals to fight on your terms. Conduct daring paratroop drops and stage amphibious invasions. But remember, no plan of battle survives contact with the enemy. Be prepared to adapt quickly to an evolving battlefield and outmaneuver your opponents.

Customize Your Army:


Reorganize entire divisions to suit your playstyle or combine units across divisional lines to create specialized battlegroups custom-tailored to your mission. Feel free to recreate historical battlegroups or experiment with alternative force structures. But don’t stop there, necessity is the mother of invention. As your army is bloodied, compensate for diminishing reserves by creating even more novel battlegroups from the battered remnants of your forces.

Key Features:

  • Command German, Soviet, American, British, Italian, and French forces from 1939-1945.
  • Simultaneous (WeGo) turn resolution.
  • Customize historical forces by retraining and reorganizing units and merging them into custom battlegroups.
  • 4468 Units detailed down to every tank, artillery piece, and rifle squad.
  • Combined arms warfare: deploy tanks, infantry, artillery, and aircraft to wage blitzkrieg against your opponents or grind them into the dust through attrition.
  • Long range artillery: Provide fire support or pound your enemies from many hexes away.
  • Fog of war and reconnaissance: Use recon units and aircraft to watch your flanks and track your enemy’s maneuvers.
  • Four game types, ranging from small meeting engagements to full-scale amphibious invasions.
  • Randomized objective selection and starting zones to enhance replayability.
  • Single player, synchronous head-to-head PvP and 2 player co-op.

Combined Arms Operations Series — game info

Platforms
Windows
Player modes
Single-player, Online PvP, Online co-op
PC Game Pass
Not included

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Jan 27, 2025
CAOS is an operational World War II game that features both historical scenarios (such as Husky, battles from the North African theater, and the upcoming Operation Sea Lion) and random scenarios. This review will not focus on the historical scenarios (though I can say that, for now, there are few of them, and the order of battle appears to be accurate). For me, the main appeal of the game lies in its random scenarios. It features four game modes: Skirmish: An attacker must conquer a random city defended by an opposing force (I never achieved this, for reasons explained later). The AI is excellent at defending, using a hedgehog technique around the city and employing mobile units to disrupt your supply lines. Thanks to the "Stack Limit," using a few high-combat-power units is ineffective, as you cannot protect your supply lines. Inside the city, the AI typically places tank regiments and anti-tank units. The defense bonus that tanks receive in cities makes them nearly impossible to dislodge. I believe this bonus should be limited for tanks or even made negative, ensuring that infantry becomes the primary force for defending and attacking urban areas. Even with engineers, cities ca…
3 found this helpful
Recommended Jun 21, 2025
I was hesitant at first. The UI is a bit daunting at first, but when you get used to it, it is actually pretty intuitive. The scenarios look great and the historical database is any WW2 enthusiasts dream. This is a solid purchase for any wargamer and the devs are very nice and willing to answer any questions. Some stuff they have in the pipeline are a UI overhaul, AI overhaul, and then the most awaited item that we all wish for: the scenario/map editor. I honestly cannot wait for the full editor to come out which the devs said they will hopefully begin working on in the fall, so perhaps we will have our hands on it by the end of the year. Really solid game and cant wait to see what the devs cook up next!
1 found this helpful
Recommended Jul 24, 2026
This is pretty good. There's lots going on "under the hood".
Recommended Jul 17, 2026
whatb happened to game, tried to play
Recommended Mar 23, 2025
Is a tad strange, but still fun.
Recommended Feb 15, 2025
great potential, solid wargaming investment

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