Humble bundle link - It is 2017 version according to the Humble bundle description

Can not find 2017 in steam.only 'Train simulator'

the image of train simulator shows 2018 but I think 2017 2018 is just showing the 'Year'

https://steamcommunity.com/app/24010/discussions/3/1471966894882443054/

you can refer to the link above

Be humble and enjoy