The player settings page for this game contains all the options you need to configure and export a config file. Player settings page link: [Risk of Rain 2 Player Settings Page](../player-settings).
Risk of Rain is already a random game, by virtue of being a roguelite. The Archipelago mod implements pure multiworld functionality in which certain chests (made clear via a location check progress bar) will send an item out to the multiworld. The items that _would have been_ in those chests will be returned to the Risk of Rain player via grants by other players in other worlds.
When an item is granted by another world to the Risk of Rain player (one of the items listed above) then a random in-game item of that tier will appear in the Risk of Rain player's inventory. If the item grant is an `Equipment` and the player already has an equipment item equipped then the _item that was equipped_ will be dropped on the ground and _the new equipment_ will take it's place. (If you want the old one back, pick it up.)
When the Risk of Rain player fills up their location check bar then the next spawned item will become an item grant for another player's world. The item in Risk of Rain will disappear in a poof of smoke and the grant will automatically go out to the multiworld.
The item pickup step is a YAML setting which allows you to set how many items you need to spawn before the _next_ item that is spawned disappears (in a poof of smoke) and goes out to the multiworld.