Victoria 3: free update 1.15 brings cold, copper and Cossacks on 5 November

Update 1.15 for Victoria 3 is free for every owner of the base game, and Paradox is shipping it with the State and Revolution Immersion Pack. That pack has been pushed back from 22 October to 5 November 2026. The update was announced as its companion, so the date to remember is the same, even though the delay Dev Diary does not repeat it explicitly.

Many readers mix the two up. Cold, copper, Cossacks, the reworked socialism and the AI overhaul belong to the free patch. The Tsars, favorites and Siberian exile stay reserved for the DLC. The full changelog is not out yet: Paradox promises a dedicated Dev Diary, so some details below may still move.

What is free, what is not

Dev Diary #189 presents the additions coming “to the base game” with 1.15. DD#188 specifies that the whole socialism rework is free. Conversely, the visual effects for seasons belong to the DLC, as DD#193 on art and music confirms.

In other words, 1.15 brings rules, not scenery. A player without State and Revolution gets the cold system, but not the snowy landscapes or the animated sea ice. The favorite role is reserved for owners of the pack, according to DD#194. The notable, for its part, is a generic role created through script.

Cold: one more season to plan around

The most consequential novelty is the cold system, and the real issue is timing. Depending on the time of year, the intensity of cold rises or falls in states and above all in sea zones, with regional and hemispheric differences. Some states have permanent cold, while others never suffer it.

Above a threshold, cold slows ships, up to the point of immobilising them when they are caught in ice. The direct consequence: an army supplied through a frozen sea zone needs 50% more supply ships, a value Paradox calls provisional. Trade centers connected to a severely cold sea also lose a significant part of their trade capacity.

The DD#189 states a limit: in 1.15, the cold in a state does not yet affect the supply of units standing there. Choosing when to cross the Baltic becomes a genuine calculation. For now, the risk falls mostly on navies, not yet on land armies.

Copper, a new industrial good

The famous “mystery good” is copper. According to Paradox, it feeds electrical and military production chains. Wooden ships consume copper for sheathing, and in the ship designer from The Great Wave the medium and high armor levels require it, unlike the low level.

Copper also appears in electrical production methods, such as electric sewing machines, and in food industries, where pot stills and patent stills consume it. At game start, cannon production could already hesitate between copper and iron: new methods let players choose between the two for the first models. Deposits have been spread across the map, including Cornwall, Australia and Japan.

Cossacks: a frontier that fills up

Reserved for countries with an East Slavic primary culture, the Cossack system relies on Cossack Hosts to be established in states you own. A host reserves up to 20% of arable land, much like a subsistence farm, and gives migration attraction, policing and colonial growth in return.

The downside is clear. A host cannot be removed for ten years, dismantling it radicalises the population, and the presence of Cossacks raises radicalism among poorly accepted minorities. Cossacks also form their own political movement, which can turn to rebellion against a foreign occupier. DD#190 lists them among the tools of the Russian state in 1836.

A reworked map and cultures

DD#189 also announces map changes. In the Caucasus, the old North Caucasian culture splits into more precise groups such as Ossetians and Dagestanis, and the Crimean Tatars are set apart from the Volga-Ural Tatars. The Russian Far East gets larger states, and the “Siberian” culture divides into peoples such as the Chukchi and Evenki.

These changes also affect players who will never pick Russia, because neighbours in the Caucasus and Central Asia inherit the new cultural geography.

Socialism reworked

DD#188 describes the deepest part of the free patch. Obtaining a Council Republic becomes harder: it now requires Factory Councils as a law or amendment, earned by a revolutionary movement that climbs in activism.

New laws accompany this system, including Labour Suffrage, the Extraordinary Commission, the Revolutionary Guard and Communal Administration. In practice, the Extraordinary Commission takes over some Secret Police effects and activates the Extraordinary Measures journal entry, but the Revolutionary Guard destroys the political weight of the armed forces at the price of a smaller standing army. The Social Democrat ideology gives way to State Socialism, which fits the era better, and communists are told apart from vanguardists by labour productivity and the weight of the peasantry.

For a player aiming at socialism, the lesson is clear: first mobilise the working class, then defend the state it creates. The old shortcut of simply researching a technology no longer suffices.

The AI overhaul is included

The 1.14 beta is merged into 1.15. Single war support, war goal flipping, recalculated infamy and multiple trade hubs therefore arrive in the same package. The analysis of the AI overhaul details these systems. One concrete example: releasing a country now requires a minority movement with 50% activism.

The Great Game: not free for everyone

This is the point where earlier versions of this article went wrong. The Great Game is no longer a separate objective: it is available from the start of the game for Russia, Britain, British India and the minor powers of Central Asia and Persia. Its sub-goals appear in a journal entry.

But DD#192 specifies that this version is offered only to owners of Sphere of Influence or State and Revolution. The pack’s Steam page confirms that Great Game entries and events become available to all its owners. The free patch alone is therefore not enough.

Long-awaited modding tools

DD#194 lists tools for creators: scripted outcomes for journal entries, customisable progress bars, journal entry map modes, regional exile pools and regnal numbers. Paradox warns that old journal entries will break until updated, and that older saves will be largely incompatible.

Verdict: a patch that changes the rhythm of games

Update 1.15 is mostly an update of constraints. Cold forces players to watch the calendar, copper redraws some industrial chains, Cossacks tie the frontier to migration and radicalism, and socialism finally demands a plausible historical path. On paper, that is richer than a simple batch of fixes.

The weak point is readability. Many values are still announced as provisional, and the changelog is missing. The answer to the question of whether to start a new campaign will depend on save stability and final balance. For a player who is waiting, the safest move is to hold on until the patch notes appear.

What to watch before 5 November

• The full 1.15 changelog and the achievement list, which Paradox has announced for an upcoming Dev Diary.
• Confirmation of the release date of 1.15 itself, which has only been repeated for the pack.
• The balance of cold, especially on trade and naval logistics.
• The fate of existing saves and mods.

Going further

• All our Victoria 3 articles
• Victoria 3 State and Revolution: the pack delayed to 5 November
• Complete beginner’s guide to Victoria 3
• Victoria 3: 860 quadrillion famine deaths in 12 months, Paradox stats show