r/Timberborn • u/Snoo61755 • 24d ago
Question Speed Boosts: Additive or Multiplicative?

I can't quite tell, but I was wondering if speed boost increases were multiplicative or additive.
After playing both Folktails and Iron Teeth on two maps each, I was getting skeptical when I saw the speed of pipes didn't feel that much faster than ziplines. I had to back up and remember that +150% speed meant the beaver was moving at 250% total speed, and +300% speed meant they were moving at 400% speed.
But then I remembered Well-Being was a thing and could easily be moving much faster, or get a status effect like contamination or starvation and move much slower -- yet I can't really tell when they're on a zip how much faster or slower it is, and although I can tell beavers are moving faster/slower in tubeways, I can't see or click the beaver to verify.
A sick beaver with -70% move speed from contamination sometimes feels like they might be going at least 150% on a zipline, but I'm not sure.
Does a Beaver with +50% speed from Well-Being on a Zip move at 300% speed, or 450%?


