Matter.World has been replaced with Matter.Composite
matter.js deprecated World
could cause problems merging your old code
(replace World with Composite in your code)
tech: many worlds - now costs 1 research at the start of each level to activate
a nerf, but also a buff because if you like a build you can freeze it by not getting research
mine gun has 25% less ammo and 33% more damage
railgun now gets 50% more ammo, but it fires slower
fixed rail gun ammo drain on misfire bug
fixed experiment gun display bug
aea9276cb2