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ICBM: Escalation
ICBM: Escalation is a grand RTS where you command armies, develop cutting-edge tech, and wield devastating weapons. Conquer enemies with conventional forces or nuclear firepower. With new modes like Standoff and Conquest, the game offers deep strategic layers in a global warfare setting.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-04 · quoted reviews as of 2026-05-14.
What reviewers agree on
45 of the 104 reviews raise this.
“ICBM: Escalation is a great improvement over its predecessor (ICBM). After thousands of hours (and I truly mean thousands of hours) dedicated to gaming ancient, medieval, fantasy, horse and musket and conventional…”
“Now I know how it feels to destroy some one billion $ THAAD systems with 20k $ drones. Too bad there are no aircraft carrier "laundry on fire" type of damage tho. Pro: great game Con: no toilet upgrade for new…”
“The actually gameplay is great, I have some balance concerns (conventional ballistic missiles are absolutely useless and certain builds are just completely impossible) but overall I do enjoy playing it. That said, I…”
11 of the 104 reviews raise this.
“ICBM: Escalation is a great improvement over its predecessor (ICBM). After thousands of hours (and I truly mean thousands of hours) dedicated to gaming ancient, medieval, fantasy, horse and musket and conventional…”
“True successor to Defcon. Unlimited replay-ability. Very Fun. Favorite game of 2025 and so far 2026. AI isn't perfect but can still be a challenge and a threat. Game is still getting DLC, AI updates, and love from…”
“It pretty great as far as modern warfarre startegy which is hard af to do, plus the alternate history and custom scenarios and mods add to the fun its the next evolution of defcon. And for me the historical scenarios it…”
5 of the 104 reviews raise this.
“True successor to Defcon. Unlimited replay-ability. Very Fun. Favorite game of 2025 and so far 2026. AI isn't perfect but can still be a challenge and a threat. Game is still getting DLC, AI updates, and love from…”
“It pretty great as far as modern warfarre startegy which is hard af to do, plus the alternate history and custom scenarios and mods add to the fun its the next evolution of defcon. And for me the historical scenarios it…”
“Nearly a perfect game. Very challenging, sometimes too challenging, but I have enjoyed every minute spent across three campaigns, multiple times. The United States of Annihilation is hitting...really close to home right…”
4 of the 104 reviews raise this.
“This game is an absolute blast. The fact that you can choose between waging conventional warfare or unleashing full-scale nuclear annihilation is something I never knew I needed — and now I can't imagine playing without…”
4 of the 104 reviews raise this.
“True successor to Defcon. Unlimited replay-ability. Very Fun. Favorite game of 2025 and so far 2026. AI isn't perfect but can still be a challenge and a threat. Game is still getting DLC, AI updates, and love from…”
“Wonderful, for old DEFCON lovers this IS IT, truly it. Developer actively releases betas and improvements, I wish just for 3 things: - Smarter AI, please add MCP for LLMs and let us connect our Agents lol - Less…”
“It's an interesting RTS game with an unusual take on game design. It is somewhat realism-inspired in the sense that the research tree tries to match military tech developed from ~1950 to today and making some plausible…”
11 of the 104 reviews raise this · 9 of them still recommend the game.
“The actually gameplay is great, I have some balance concerns (conventional ballistic missiles are absolutely useless and certain builds are just completely impossible) but overall I do enjoy playing it. That said, I…”
“Wonderful, for old DEFCON lovers this IS IT, truly it. Developer actively releases betas and improvements, I wish just for 3 things: - Smarter AI, please add MCP for LLMs and let us connect our Agents lol - Less…”
“Love the concept and most of the implementation. I have enjoyed the game a LOT. I have some notes for the devs, who I hope see this, around air combat though. I find the air combat doesn't give you enough basic controls…”
8 of the 104 reviews raise this · 1 of them still recommend the game.
“Alright, the game is not bad but... the launcher. I have nothing against games that use their own launcher, but please make it work properly. Not that it launches the game just when it wants to. (like 50% of the time)”
“Game breaking bugs for weeks. After 200 hours played I have been cucked out of the game completely. I can not play at all due to a "steam connection issue" Seems to be the developers homemade, and completely broken DRM.”
“The actually gameplay is great, I have some balance concerns (conventional ballistic missiles are absolutely useless and certain builds are just completely impossible) but overall I do enjoy playing it. That said, I…”
7 of the 104 reviews raise this · 4 of them still recommend the game.
“Alright, the game is not bad but... the launcher. I have nothing against games that use their own launcher, but please make it work properly. Not that it launches the game just when it wants to. (like 50% of the time)”
“Now I know how it feels to destroy some one billion $ THAAD systems with 20k $ drones. Too bad there are no aircraft carrier "laundry on fire" type of damage tho. Pro: great game Con: no toilet upgrade for new…”
“Game breaking bugs for weeks. After 200 hours played I have been cucked out of the game completely. I can not play at all due to a "steam connection issue" Seems to be the developers homemade, and completely broken DRM.”
3 of the 104 reviews raise this · 2 of them still recommend the game.
“Wonderful, for old DEFCON lovers this IS IT, truly it. Developer actively releases betas and improvements, I wish just for 3 things: - Smarter AI, please add MCP for LLMs and let us connect our Agents lol - Less…”
Counted across 104 English reviews, sampled to match this game's 86.1% positive rating · as of 2026-05-14
“Fun game but PVE AI needs work. I spawned in as North America. Setup along the Mexico border cus Central America has assets there. CA had a tank on the border CLEARLY moving into NA even before the “No war” timer was up. The second the timer finished was getting invaded by CA.…”
— a player, Steam review · 10 hrs played“TLDR: Great game, even better warcrime simulator. So the game is good fun, basically you build up your country, research (mostly warcrimey) tech and eventually war breaks out. At this point you hopefully managed to build up decent defences as both you and your enemy will start…”
— a player, Steam review · 62 hrs played“This is a great game and expands a ton on the first title and the original DEFCON, but I hope you have a bunch of friends who are willing to play, or you will very quickly find the bigger flaws. The AI in particular is very poor—both your AI and the enemies'—making the game feel…”
— a player, Steam review · 136 hrs playedPlayer activity
Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-06 via SteamCharts.
Achievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-05.
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.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-10). 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.
Assassin's Mace | Dev Diary and Release date
Hi everyone! We’ve been continuing to work on ICBM: Escalation and now that the major AI update is out, we’ve been making small fixes and improvements where we can, but our attention has been mainly f
Update 1.1.4 – Improvements, AI Freeze Fix and Clarification on DRM
Update 1.1.4 is now available for ICBM: Escalation. Alongside the latest gameplay improvements and fixes included in today's patch, we'd like to address an issue that has recently generated a lot of d
ICBM: Escalation - Assassin's Mace | DLC Revealed
We’re excited to reveal Assassin's Mace , the next DLC for ICBM: Escalation. Assassin's Mace follows the rise of the People's Republic of China from the aftermath of World War II to its emergence as a
Update 1.1.3 — New Beta — AI Rework Next Steps
Hi everyone, a new update for ICBM: Escalation is out now. It focuses on AI behavior, QoL improvements, fixes and more. 1.1.3 : Fixed the extreme performance drop caused by helicopters hanging on top
AI Rework Release + S.N.A.R.E. Campaign free content
AI Rework The team fully reworked the game’s AI. This is a fundamental overhaul, heavily driven by community feedback and incorporating many player-suggested tactics and improvements. The new AI is mo
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-14.
| Genres | Strategy |
| Player tags | Strategy · RTS · Cold War · War · PvP · Co-op · Multiplayer · Singleplayer · Online Co-Op · Wargame · Destruction · Modern (SteamSpy community voting) |
| Features | Single-player · Multi-player · PvP · Online PvP · Co-op · Online Co-op · Steam Achievements · Family Sharing |
| Languages | English, French, Italian, German, Spanish - Spain, Simplified Chinese, Russian |
| Achievements | 82 |
| Official site | https://www.slitherine.com/game/icbm-escalation |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS: 64-bit Windows 10/11 Processor: 4-core CPU Memory: 8 GB RAM Graphics: GPU GTX 970 DirectX: Version 11 Storage: 8 GB available space Sound Card: DirectX Compatible Sound Card