The official Core Keeper Steam page announced the crossover event between the two beloved games,
which share a similar premise. It said that starting on September 26th,
Core Keeper players will be able to summon the Slime King boss, a heavy-damage dealer from Terraria.
Since players will need to use a unique item that will be included with the update to summon Slime King
when they want to engage in combat, it will be similar to Omoroth in that it won't spawn randomly
"We are excited to announce that we will be working with Re-Logic on some fun crossover projects.
We've talked with Re-Logic about Core Keeper and Terraria, two sandbox games with an emphasis on exploration and adventure.