Game Modes
Endless
In endless, the players start in the grass biome and have to progress as far as they can. At each map segment, they can either complete the train track to the station on the right or build at the map border. If they build at the border, the station disappears and the next segment flies in. If they build to the station, they enter the shop mode. In both cases, the train increases its speed.
At the station, the players can use bolts to upgrade their train or to buy a new engine. When buying a new engine, the next map segment progresses to the next biome and the train speed resets to a lower value.
Versus
In versus, the players start in a random biome (depending on the difficulty) and are divided into two teams. Each team has the same map which is less than half as wide than in the other modes such that it fits on a single screen. The goal is to outrun the opposite team by either connecting first to the station or by surviving longer than the opponent team or (in case both trains crash at the same time) by crashing further to the right.
Versus can only be played with at least two players. If a team has only one player, the team is filled up with a bot that can be commanded by the (single) player in the same team.
Quick
In quick, the players start in a random biome (depending on the difficulty) and have to build only to the next station in the shortest time possible. The train has one random additional wagon and the an upgrade-crate on the map can be picked up and placed on any wagon to upgrade it mid-game.
Sandbox
In sandbox, the players directly start in a configuration station (similar to the shop in endless) where they can detach and attach wagons from the set of all previously seen wagons. Also the engine can be changed into one of all previously seen ones and the train speed can be configured as well. When leaving the shop, a map segment depending on the engine taken will fly in and when players build to the next station, the configuration screen appears again.