Transport Fever 3 MPFever Mod Adds Cooperative and Competitive Multiplayer

Transport Fever 3’s MPFever mod turns a mostly solo transport management game into a shared project. Players can build together from separate PCs, split tasks across one company, or run competing businesses in the same world. That changes the rhythm of a game built around planning networks and managing money: a friend can make decisions alongside you instead of waiting to see what you’ve built.

Created by modder dkdknight and fellow developers, MPFever supports internet play and local network sessions. Its central idea is straightforward: several players can enter one world and see one another’s work as it happens. For a genre that often asks players to spend long stretches shaping a map alone, that opens up a different way to approach planning, construction and the inevitable budget decisions.

One world, one shared business

In cooperative play, the group shares a company and a single bank account. Players can divide the workload, with one person planning a route while another builds, and the whole team has access to the same vehicles, roads and public transport. Each player’s actions appear for the others, so a new connection or construction project becomes part of the group’s common plan.

That shared setup gives ordinary management choices a social edge. A route that looks useful to one player still draws from the same pool of money everyone else is using. Coordinating who handles which part of a network could help a group move faster, while unclear plans could lead to competing construction priorities or a dwindling balance. The mod’s shared account makes those trade-offs visible to the whole team.

Players can also start separate companies within the world. That shifts the session from joint planning to competition, with satisfaction ratings and city appearance among the measures friends can compare. Money can move between companies through player-to-player transfers, adding another choice: keep funds for your own business or send cash to a rival who needs it.

The financial stakes apply in either style of play. If a company runs out of money, it goes bankrupt and is auctioned to the highest or lowest bidder. That mechanic gives groups a reason to watch their accounts as they expand, especially when several players are making decisions that affect the same business. It also means a friendly challenge can turn into a contest over who manages growth most carefully.

Private servers and Steam invites

MPFever lets players host an independent server for their group. The world can keep running in the background, and hosts can set a password and limit the number of players. The mod is also described as handling crashes and errors on its own, which could make an ongoing shared world easier to maintain when players aren’t all present at once.

Steam integration provides a familiar way to invite friends through the platform. The mod compares players’ worlds every ten seconds to keep their sessions aligned, and includes chat for sharing plans and updates while playing. Together, those features are aimed at keeping a group connected as construction changes the shared map.

There are some setup requirements to bear in mind. Everyone in a session needs the same game version and the same mods installed, so a group with different setups will need to bring those into line before joining. MPFever is available through Nexus Mods, where its creators describe it as active development and recommend keeping backups of game files. That advice is especially relevant for a mod that changes how a game world is shared and updated.

For players who already enjoy building transport networks, the appeal is easy to see: MPFever gives a friend a practical role in the same world, whether that means sharing a company’s workload or trying to outbuild a rival. The game received an eight-out-of-ten review from Theo, who called it “a solid overhaul of a tried and tested formula,” and it currently holds a “mostly positive” rating on Steam. MPFever adds a new reason for groups to return, with its active development and shared version requirements worth keeping in mind before they start a long-running world.