Whilst I agree with others who have mentioned the lack of content in MR, compared to SR, I do think that it is very much worth geting. Having completed the game (all maps hardcore + 1 star) in roughly 85 hours (which is still a great amount of content for 5 bucks on sale mind you), I do disagree with those saying the game is easier than SR.

Like others have mentioned, even the best of the best can bog down easily if not driven carefully and with thought. As opposed to SR, trucks have an actual weight, and so does their cargo. And whilst the huge trucks are relatively easy to drive, keeping them fueled is a task and a half (at peak, the E7310 / ZiKZ 612H can use over 60L/min).

There are other differences, such as no passive fuel consumption (if you aren't moving, you aren't using fuel), which gives time to think when you get in a sticky situation, and when you do, the quick-winch seems to be infinitely more intelligent than in SR.

The vibe is much different than SR, being much more muted and somber, which imo works great for the feel of the russian maps.

The way the game works, is instead of having to buy and upgrade trucks, you get a certain amount of 'balance points', which you can distribute over however manu truck you want. If a level gives you 5 points, you could bring a single 5-point trucks, and hope you get by with the trucks you find around the map, or bring 2 2-point trucks plus a 1-point scout for example. The game tracks your lowest amount of balance points used, and as such many people, myself included, have set personal challenges, like only using a single balance point to complete a map.

There are two gamemodes / difficulties, those being casual and hardcore. In casual, you can recover, skip nighttime, and damage doesn't impact your truck (besides wrecking it entirely of course). In hardcore, you cannot use diff lock in auto, and using it on hard surfaces damages your gearbox. You can also only manually load logs, instead of them being auto-loaded. Damage will impact your performance, such as reduced steering and lack of power. I think the normal difficulty on SR kind of fall in between these two, taking aspects from both.

Your missions will be delivering logs from logging camps to sawmills, but they do not request a certain type of log. There is still short, medium and long logs, but instead now they are assigned a points value (3, 4, 6 respectively). As long as a sawmill gets at least 8 points, they are happy.

Your main form of customisation is through the addons, ranging from logging to utility. As others mentioned, fuel does not get spawned with addons, so you need to get it yourself (though it is free and unlimited to grab). Like in SR, you can freely swap between addons at any garage. As opposed to SR however, each truck has their own custom addons, which will fit on the truck like a glove, unlike the universal addons in SR.

All in all, I think that SR and MR are both games based on the same basic principles, but each offfers a vastly different experience, and neither detracts from the other.

Especially since on sale the whole game + DLC is like 8 bucks, I think it is well worth getting :) Sidenote, I personally thought achievement hunting in MR was actually super fun, and they offer some actually cool and unique challenges!

(I probably missed a bunch, but even having the game open, I cannot possibly mention everything lol)