Guide · reference
All pets and how to unlock them
~4 min read·Reviewed v1.00.09·Updated 2026-06-04
Grindable pets (5,000 kills each)
- Bat — kill 5,000 Bats at 1-7 City Outskirts (37% spawn rate, ~13,500 monsters to clear)
- Watcher — kill 5,000 Giant Flies at 2-5 Scorching Dunes (40% spawn rate, ~12,500 monsters)
- Burning Skeleton — kill 5,000 Fire Elementals
- Blue Golem — kill 5,000 Hell Golems
- Dark Spirit — kill 5,000 Ghosts
Always farm at the highest spawn-rate stage for the target monster, not the highest level. Time-to-target-kill matters more than per-kill reward when the goal is pet unlock.
DLC pets
Sword, Butterfly and Dragon all come from the same Steam DLC (app id 4427390). Unlocking the DLC unlocks all three pets immediately — no grind required.
What pets do
Each pet gives a passive buff to your active party — stat percentages, skill cooldown reductions, or special triggers. Pets stack with each other up to your active pet slot count. See /heroes per-pet stat details.