Multiplayer and mods

Steam’s store text describes Avatar Conquest, co-op and competitive campaigns, and custom-battle lobbies for up to eight players. Mod support on the new edition uses Mod.io. Creative Assembly states that mods made for the original SHOGUN 2 do not work in Complete Edition.

What Steam actually names

The store description has three multiplayer ideas in one paragraph. Avatar Conquest is a persistent general who earns experience, armour, unit types, and permanent troop upgrades by winning online battles. Co-op and competitive campaigns are offered as ways to play the SHOGUN 2 campaign together or against another side. Custom battles are hosted lobbies, and the same paragraph caps those lobbies at eight players.

SEGA’s product sheet uses a shorter line: one player, and multiplayer for two to eight players. It does not assign the eight-player cap to a specific mode. The only mode Steam ties to “up to 8” in plain text is the custom-battle lobby.

Store categories add Online PvP, LAN PvP, Online Co-op, LAN Co-op, and Cross-Platform Multiplayer. The cross-platform tag does not name a console, a store, or a version of the original game. LAN tags mean the feature list includes local network play. They do not, by themselves, describe a lobby browser.

Avatar Conquest in the original design

Avatar Conquest is older than Complete Edition. Wikipedia’s account of the 2011 multiplayer describes an achievement track that grants abilities and cosmetic upgrades, and a clan layer in multiplayer campaign where one player leads and others command armies. The limited edition’s avatar armour and starting experience were early hooks into that persistent general. Ikko-ikki’s pack later added its own avatar armour and retainers.

Steam’s 2026 text still describes the loop as: win battles, earn experience, unlock armour, unit types, and permanent troop upgrades. It does not say the progression was reset, expanded, or linked to the new minor factions. This page will not add unlock lists that are not in the store text.

The heavy bune card in the screenshot is a reminder that custom and multiplayer battles use the same unit cards as the campaign battles. The card’s text calls heavy bunes the mainstay of a fleet, each carrying soldiers and bow-armed troops against enemy ships. That is a unit description shown on the official art, not a multiplayer-only rule.

Campaign player count

Wikipedia says the 2011 game offered multiplayer battles for up to eight players and multiplayer campaigns for two, competitive or cooperative. In that campaign write-up, players can share a clan, with one clan leader and other players on armies, and the leader can direct them and hand out rewards. When armies meet, the matchmaker starts a multiplayer battle.

Complete Edition’s FAQ does not say this cap changed. Readers asked, under the FAQ post, whether online campaigns would seat more than two people. The announcement post does not answer them. Steam’s new paragraph says “co-op or competitive campaigns” without a number, then spends the number eight on custom battles.

Not stated in the sources: a campaign lobby larger than the original two-player campaign, cross-play between Complete Edition and the 2011 app, or cross-play between Steam and Epic, GOG, or the Microsoft Store. The cross-platform category is present. The partners are not named.

Two mod platforms, two games

The original game gained an Assembly Kit and Steam Workshop support in September 2012. Wikipedia describes that kit as tools for sharing maps, scenarios, and conversions through Workshop. Creative Assembly’s Complete Edition FAQ draws a hard line: the new edition launches with Mod.io, so mods from the original game are not compatible. Mods for the original game stay as they are, on that game.

That is why the FAQ also insists the original is not replaced. An account can keep a Workshop load-out on the 2011 install and use a separate Mod.io library on Complete Edition. Nothing in the FAQ describes an automatic converter.

SEGA’s announcement repeats “integrated Mod.io support” in the feature list and does not mention Workshop for the new app. Steam’s category list for app 3846830 includes “Includes level editor.” The store page does not say whether that tag means the old Assembly Kit, a new editor, or a smaller battle editor. The tag is recorded here without a definition the sources do not give.

Achievements, cloud, and sharing

The app details list 105 achievements. Ten highlighted names are Stranglehold, Carve a Path, Uniter of Japan, Double Dragons, Keeping to Tradition, Modernisation, Loyal to the Clan, Serve with Honour, Path of the Leader, and Skilled Warrior. Several of those titles echo campaign ideas already in the original game, such as modernisation in the 19th-century campaign and uniting Japan, but the feed does not include the unlock text. This guide does not invent the conditions.

Steam Cloud and Family Sharing are both tagged. Family Sharing is Steam’s account feature. It is not a statement about LAN co-op. Cloud is tagged. The page does not claim which files sync.

Single-player systems those multiplayer campaigns still pass through — Realm Divide included, at least in the 2011 co-op description — are on the campaign guide. The question of which historical packs sit in the purchase is on what’s included.