Build a base, manage your economy and command historically inspired civilizations in Age of Empires III: Definitive Edition. Each civilization has different armies and economic options, with Home City shipments adding strategic choices. Choose campaigns, skirmishes or competitive multiplayer.
Update 19.18658 adds Independence Mode leaderboards and matchmaking queues, adjusts The Baltic Powers content and other civilizations, and fixes spectator listings, LAN hosting, Steam Xbox Live invitations, graphics and interface issues.
Delivered update
Reviewed October 17, 2026 · Publisher news for this Steam edition.
The official guide distinguishes in-game Scenario Editor projects, XS-script custom maps and data mods. Create scenarios through the game’s editor; use the linked category documentation for the chosen format.
Built-in Scenario Editor / XS maps / game data mods
Keep original scenarios and saves before editing. Player package deployment remains a follow-up until its format-specific official instructions are verified.
This guide’s update and mod instructions apply to the identified Steam PC edition. Other stores, console releases and test branches can differ.
windows
Steam displays 84% positive across 150 reviews in the last 30 days at this review.
Review aggregates describe the displayed sample and can change.
Reviewed October 17, 2026. Exact editions and mod requirements can differ across stores and branches.
This is an informational guide. Automatic mod-folder preparation and package installation are not enabled for this game in Heimdall Link.