Single-player games like SGS Operation Downfall
Below are 15 single-player Steam games similar to SGS Operation Downfall, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like SGS Operation Downfall page.
Ranked picks
- 1

Unity of Command II
Single-player alternative to SGS Operation Downfall — playable solo, no multiplayer required. Shares Strategy and Simulation with SGS Operation Downfall.
Unity of Command II is the sequel to one of the most critically acclaimed strategy games of all time; a game critics called 'the perfect gateway' into computer war games.
- 2

SGS Winter War
Single-player alternative to SGS Operation Downfall — playable solo, no multiplayer required. Shares Strategy and Simulation with SGS Operation Downfall.
Winter War is the story of the Soviet onslaught on tiny Finland from November 1939 to March 1940, at the beginning of WW2. Can the Finns hold beyond the reasonable and receive the long awaited Allied intervention? Or will the Russian bear crush them and force them to lose their border lands?
- 3

SGS NATO's Nightmare
Single-player alternative to SGS Operation Downfall — playable solo, no multiplayer required. Shares Strategy and Simulation with SGS Operation Downfall.
What if the Warsaw Pact had attacked NATO in the mid-1980s. Or the other way around? Study this titanic conflict, within its most emblematic theater, Germany and Central Europe. Will you be able to achieve your goals without escalating into an uncontrollable nuclear conflict?
- 4

Age of History 2: Definitive Edition
Single-player alternative to SGS Operation Downfall — playable solo, no multiplayer required. Shares Strategy with SGS Operation Downfall.
The grand strategy classic returns with improved gameplay, a massive 13,892 province map, expanded diplomacy and wartime capitulation, new civilizations and scenarios, atomic weapons, smarter AI, enhanced visuals, UI upgrades, and major performance improvements.
- 5

Panzer Corps 2
Single-player alternative to SGS Operation Downfall — playable solo, no multiplayer required. Shares Strategy with SGS Operation Downfall.
Panzer Corps 2 is the ultimate Second World War strategy game! Enjoy the time-proven gameplay formula which has been appreciated by millions of players over the years, brought to a whole new level of refinement up to the latest technical standards.
- 6

Hearts of Iron III
Single-player alternative to SGS Operation Downfall — playable solo, no multiplayer required. Shares Strategy with SGS Operation Downfall.
Hearts of Iron III lets you play the most engaging conflict in world history, World War 2, on all fronts as any country and through multiple different scenarios. Guide your nation to glory between 1936 and 1948 and wage war, conduct diplomacy and build your industry in the most detailed World War 2 game ever made.
- 7

Steel Division 2
Single-player alternative to SGS Operation Downfall — playable solo, no multiplayer required. Shares Strategy and Simulation with SGS Operation Downfall.
Steel Division 2 is a historically-accurate WW2 real-time strategy game set on the Eastern Front. Features 1:1-scale turn-based army management and real-time tactical battles with thousands of men at your order.
- 8

Hearts of Iron IV
Single-player alternative to SGS Operation Downfall — playable solo, no multiplayer required. Shares Strategy and Simulation with SGS Operation Downfall.
Victory is at your fingertips! Your ability to lead your nation is your supreme weapon, the strategy game Hearts of Iron IV lets you take command of any nation in World War II; the most engaging conflict in world history.
- 9

SGS Taipings
Single-player alternative to SGS Operation Downfall — playable solo, no multiplayer required. Shares Strategy with SGS Operation Downfall.
The game recreates the Taïping Rebellion (1851-64), the deadliest Chinese civil war, costing the lives of millions. Play the Taïping rebels and their allies, fighting to create their own state, or be the Qing Emperor and crush the revolt and its foreign devils allies before it topples your dynasty.
- 10

SGS Korean War
Single-player alternative to SGS Operation Downfall — playable solo, no multiplayer required. Shares Strategy and Simulation with SGS Operation Downfall.
The first intense conflict of the Cold War, this war is very often forgotten, its very rapid and dynamic but unknown aspect obliterated by months of stagnation following the first year of operations in Korea. Can you make it remembered?
- 11

SGS Afrika Korps
Single-player alternative to SGS Operation Downfall — playable solo, no multiplayer required. Shares Strategy and Simulation with SGS Operation Downfall.
The game recreates the campaigns and battles of Erwin ‘Desert Fox’ Rommel’s legendary Afrika Korps, in Libya between 1941 and 1942. Play the Axis forces to conquer the most valuable prize of all: the Suez Canal. Or command the 8th Army soldiers, the famous Desert Rats, to repel the invaders.
- 12

SGS Afrika Korps: Tunisia
Single-player alternative to SGS Operation Downfall — playable solo, no multiplayer required. Shares Strategy and Simulation with SGS Operation Downfall.
SGS Afrika Korps: Tunisia is a complete standalone game that covers the famous Tunisian campaign of November 1942 to June 1943. Hold Tunisia as the Axis, or expel your enemy from Africa and set the stage for the Allies invasion of Sicily.
- 13

SGS Fall Weiss
Single-player alternative to SGS Operation Downfall — playable solo, no multiplayer required. Shares Strategy with SGS Operation Downfall.
The Second World War began with the invasion of Poland by German forces on 1 September 1939. It is represented in this strategy game, a fully-fledged turn-based wargame.
- 14

SGS Pacific D-Day
Single-player alternative to SGS Operation Downfall — playable solo, no multiplayer required. Shares Strategy and Simulation with SGS Operation Downfall.
One game, five great battles where the US Marines gained even more glory, at the price of terrible losses. Relive bloody assaults on Saipan, Tinian, Tarawa, Iwo Jima and Peleliu in this recreation of epic land battles of the Pacific War. Both sides are playable, each with their own challenge
- 15

SGS Spain at War
Single-player alternative to SGS Operation Downfall — playable solo, no multiplayer required. Shares Strategy with SGS Operation Downfall.
The complete Spanish Civil War from July 1936 to April 1939, with all units, weapons and events included on a weekly base. The most complete strategy game made on this conflict. Fight for your ideals, and take control of Spain!