: This is widely considered the best gadget in the game. It allows you to instantly transport resources or yourself back to the dome.
Pro Tip : Upgrade it so you can drop the portal at your current mining spot and warp back to the dome just seconds before a wave hits.
The filename Dome.Keeper.Build.9900689.rar suggests a specific version of the game. Ensure you are running the game through a stable environment, as older builds can sometimes have physics bugs with the or Resource Converter .
"The game is all about the 'one more block' mentality. If you don't have the Teleporter yet, always head back when the timer is at 75% or you'll take unnecessary dome damage."
: This UI feature tells you exactly when the next wave is coming. In Build 9900689, keeping a close eye on this allows you to stay in the mines until the very last second, maximizing your resource gathering.