My golden rule is Every Road Must Be Traveled, Map Have To Be Discovered. So since 2017 I do it almost on every game update including all expansions and reworks. This obsession has driven me through countless game updates, expansions, and complete map reworks across both American Truck Simulator and Euro Truck Simulator 2. Some map updates take a lot of time but some is pretty small and can be discovered in couple days. When you switch to another profile and don’t want to start map discovery from the scratch it is possible to transfer opened road to another profile. So I do it sometimes with newer profiles for both games (ETS2 and ATS) and also periodically share my progress in Youtube guides

The new update 1.56 for both games has been released recently and we have blank spots in vanilla maps with DLCs.

Current Discovery Status:

Euro Truck Simulator 2: 99.97% complete
American Truck Simulator: 99.99% complete
These percentages are based on the previous 1.55 version with all available map expansions

While I may update my guides later but if you follow my Youtube and blog you can achieve 100% completion on version 1.56 quickly, before the next wave of road reworks or DLC releases arrive

Below you can find latest 100% guides for both games:

100% Discovered Map of ETS2 1.55 (Save game) and tutorial (prepared in April 2025, ETS2 1.54)

[Guide] ATS 1.55 – 100% Explored map with all DLC (with Iowa) (prepared in August 2025, ATS 1.55)