Fly, build and place Minecraft blocks in Risk of Rain 2
How to join The host opens "Multiplayer", invites Steam friends with the "+" button and picks "Start Private Game" once everyone is in; friends accept the Steam invite. Everyone playing needs this mashup from Melty.
Press F6 during a Risk of Rain 2 run to switch on creative mode.
Needs Risk of Rain 2 and Minecraft: Java Edition. The block textures and sounds are read from your own Minecraft copy, so none of Minecraft is in the download.
Blocks last for the current stage. Joining a friend's game is done through Steam as usual.