you can't. The team temporarily disabled the save function untill better solution come up and can be implemented.
Did you do a search on the forum before posting as there are already several threads about this? The save function has been removed while they attempt to do a better job of it. If you need to save mid-service, stick to TSW2 until they figure it out.
I found out the hard way doing a training scenario on Cajon Pass. Getting near the end of what was around a 45 minute run and I always save near when I am supposed to start braking, just in case. Go to save, no save option.....miss the stopping point by a few yards, 45 minutes completely wasted :/ I don't mind so much on faster runs, but you crawl along at less than 20mph for so long as the start of the scenario that it really feels like a drag.
It’s unfortunate it’s not there. I’m glad they’re fixing it. I know they will (like they did the jackhammer sound) which was excellent. I wish they’d keep the current save active while they resolve it.
The new steam route for TSW3 will not save when played under TSW2. Glad the question was asked, so it is some code issue with saving. In TSW2 it shows 'save' option, yet cannot with no joy and when 'resume save,' it was an old save from another track. It makes no difference, no saves for new TSW3 tracks, in either version. Um, that is a time vaporizer one distraction 'real world' pft! 30min lost and all that switching tracks, back, forward, etc coal, water, platform.... gone if the phone rings, pause where was I.... oops. Wow. Hope they fix soon
I've just done a CAjon pass run - the better part of two hours - with the 'Unable to save game' popping up when I try to save (always happened for me) and ran a red light right near the finish. I wish they'd sort this. Surely it isn't that hard.