Servers running 7DAYSTODIE.JP’s original MOD (WhiteRiver Territory) feature mutant bosses that never appear in the normal spawn pool. It’s a marked boss-hunt event: use a contract ticket to summon the boss yourself, survive the waves, and take it down.
How It Works
- Read (use) a contract ticket from your inventory, and a marked kill quest begins within your current biome (SameBiome).
- Head to the rally point.
- Survive several waves.
- Kill the boss.
- After the kill, turn the contract in to a trader to collect your reward.
Tiers and Cautions
Contract tickets come in tiers from T1 to T6.
- T1 Rotted
- T2 Irradiated
- T3 Venomous
- T4 Charged
- T5 Wraith
- T6 Hellfire
The boss also has a mid-range vomit (acid) attack, so going all-in on melee is dangerous. Bring firearms and healing, manage your spacing, and fight smart.
Getting Contract Tickets
Contract tickets are earned mainly as rewards from high-tier kill challenges.
On the challenge screen, open the WRT category and the WRTAdvHighTier group, and all 10 challenges are shown from the start (no prerequisites to clear or notes to collect).
- Defeat the top-ranked zombies of each rank → Mutant Boss Contract Ticket plus difficulty-based WRT Tokens (coins)
- Sweep and patrol tasks → experience points
Contract challenges can each be claimed only once. The rewards aren’t skill points but tickets, tokens, and experience, tying directly into boss hunting.
First hunt high-tier zombies to stock up on tickets, gear up, and then take on the mutant bosses.