Blocks & accessories
Lost a wire? Want a second motor? Every block and part is meant to be orderable singly — because a system you can't repair isn't a system. Unpriced items take a notify-me instead of a cart button.
Every block is cross-compatible
Blocks from Reactor Rescue work in the Lab Kit. Kit blocks work in the game. Same magnets, same polarity marks, same protected components — a spare is never wasted.