BF1 isn't worth it for SP, but I enjoyed the MP for a while. My fav was the chained battle campaign in the alps. God I loved that map. Then into northern Italy. I kinda sucked at it - and cheaters were a thing. Battles could be quite epic.
The SP - meh. Maybe good for one playthrough.
Yeah I paid €6 for, but probably it was too much as it's not a good game. Way too "cinematic" but by today's standards the graphics are meh.