ZDSimulator: ChS4 Locomotive

The ChS4 Locomotive DLC was developed and published by the ZDSimulator Team and was released on 16 May 2025. The DLC is available only for the Windows version of the base game and requires ownership of ZDSimulator. There are no console or other platform ports for this DLC.

The DLC adds a model of the ChS4, a classic AC electric passenger locomotive originally built in Czechoslovakia for use on AC‑electrified railways in the former USSR. In the simulator, the locomotive comes with a fully modelled exterior and cab, and is capable of realistic passenger service operations. It has technical specifications matching the real-world prototype: a power output of 5100 kW, a top speed of up to 160 km/h, a Co’Co’ wheel arrangement, and is intended for long-distance passenger trains on AC electrified lines.

Promotion for the ChS4 DLC was primarily through the Steam store page, which described the locomotive’s background, power and operational specifications, and highlighted it as the first comfortable AC passenger locomotive in the post-Soviet region. The listing emphasized its suitability for major intercity passenger services and its full integration into ZDSimulator’s system, including routes, cab controls, and passenger operations. There was no evidence of a larger marketing campaign beyond the standard Steam listing and visibility within the catalogue.

Reception is limited due to the small number of user reviews, but community feedback appears cautiously positive. Players appreciate the addition of a historically significant passenger locomotive and enjoy the ability to operate realistic long-distance services. Some note that the locomotive’s appeal depends heavily on the availability of AC-electrified routes, as without compatible infrastructure its potential is limited. Overall, the ChS4 DLC is likely to attract enthusiasts interested in authentic passenger operations within ZDSimulator.