To clear everyone of any confussion about this being related to an exsisting simulator: https://www.hr-innoways.com/de/referenzen/detailansicht/work-in-progress-railway-simulation.html
If it's anything like their previous WOS episodes, great graphics, appalling physics. Also last time I tried the Circle Line, save game didn't work at all.
Trailer I forgot how tedious Nextsim was. Compared to this DTG's roadmaps are a blockbuster action movie.