The Steam achievement in Darkchaser is quite interesting—one of them requires you to travel the distance equivalent to circling the Earth once, and another requires the distance from the Earth to the Moon. However, I still want to complain: is anyone actually able to complete this? I know it's a game that requires you to run around all the time, and I've already played for 100 hours, but it's still far from enough :D
These achievements are just filler, preying on the people who feel bad if they don't get them all.
You can see in your own screenshot that 0.1% of players have completed it. So yes, it's possible.
Worth it? No.
You can use certain programs to give yourself achievements. Could be that
I mean, it's like a hobby. If you are unlocking them with a program you're just cheating on yourself. If you feel like you need to cheat to make yourself feel better about something that doesn't impact anyone else, then I think you should reflect a bit on that and ask yourself why you wanted it in the first place.
But that's just like, my opinion, man. It doesn't really harm anyone in the end. I just think achievements are used as carrots on a stick, exploiting the human psyche of "number go up = dopamine" to make the player think the game has more value than it does, or is "worth the price" because you got so many hours out of it (grinding for those last shitty achievements).
I did it for the original Killing Floor because they had class features locked behind achievements.