Prison Island

Prison Island is Corepunk’s flagship extraction dungeon that blends PvE challenge with PvP stakes. You have one life to gather treasure while battling monsters and sometimes other players — before escaping through an extraction point. Lose, and you drop everything, Win, and you leave with hard‑earned loot and bragging rights.

When you join Prison Island, you spawn at a random shoreline camp. Quickly identify nearby biomes and extraction routes before aggression starts.

Prison Island Map

PvE Keycard System

Players earn a Level 1 Keycard by completing Prison Island without an active Keycard.

To increase level of Keycard you need to have Keycard inserted into specific slot in Dungeons menu. Only party leader crank up Prison Island’s PvE difficulty and earn better rewards.

PvP version of Island ignores Keycards but is roughly equal to a Level 9 run in terms of monster power.

Keycard FeatureHow It Works
Starting PointAll players begin at Dungeon Level 1 (tuned to Tier 2 common gear).
Stat ScalingMonsters & bosses gain +33 % health & damage per Keycard level.
Loot ScalingLoot value starts reduced, then rises +20 % per level.
Each secondary affix adds +30 % more—bonuses stack multiplicatively.
ProgressionFinish a run without a Keycard → earn Level 1 card.
Clear with a Keycard → receive next‑level card plus a duplicate of the level you just cleared.
Max Keycard Level12 levels in total. Post‑match scoreboards with bonus rewards arrive in a future patch.
Item QualityLevel 2 cards double the chance of higher‑rarity drops vs Level 1
Level 3 cards triple it.
Upgrade cards with Item Upgrade Kits - quality persists on higher levels.
Milestone PerksFrom Access Level 9 onward: boss heads can drop and in‑dungeon merchants spawn.

Primary Affixes

LevelCountEffects
1 – 41
Colossal Monsters/Bosses (+30 % HP)
Rending Monsters/Bosses (+30 % damage)
5 – 82
9 – 123

Secondary Affixes

Card Quality# Affixes
Common0 secondary affixes
Uncommon1 secondary affixes
Rare2 secondary affixes
Epic3 secondary affixes

Secondary Affixes Effects

AffixEffect
DeceleratingHits apply stacking –10 % move-speed debuff.
ContagiousAttacks inflict 60 s DoT that ramps up each tick.
OvergrowthAll monsters gain +5 % power every minute.
Corrupted SludgeDead mobs leave 4 s pool dealing 20 % max HP / s.
EmpoweringMob deaths give nearby allies +20 % damage.
ErosiveOn death apply stacking 4 s DoT: 5 % max HP per tick.
RagingBelow 30 % HP mobs deal +30 % damage & ignore CC.
Combustible3 s after death explode for 40 % max HP & apply Burning (5 % / s, 8 s, stacks).
AimedMob death bolts deal 60 % hero max HP to targets >5 m.
MeteoricRandom meteors strike for 80 % max HP.
EntanglingBomb spawns at player, explodes rooting all in radius.

Example: Level 7 Keycard with three secondary affixes ⇒ 318 % loot bonus. An item with a 50 % base drop rate becomes 208 % (2 guaranteed drops, 8 % chance at a third).

Extraction Points

Reaching an exit with your spoils is the ultimate goal — pick the method that fits your resources and risk tolerance.
PointRequirementCapacityDescription
Grand Evacuation pointNoneAllChannel 15 s out of combat — quick but visible.
Doc Greene’s Chair
Rocket Fuel Rocket Fuel
1Instant solo exit — fuel is rare.
Escape Pod
Access Token Access Token
1Quick solo exit — tokens are consumable.
Captain Rob’s Boat1000 goldPer playerSafe but pricey.
Sunken Dam
Dynamite Fuse Dynamite Fuse
Everyone nearBlow the dam. Any nearby player can slip through.
Mine Gate
Mine Gate Key Rocket Fuel
Everyone nearUnlock tunnel — window closes after 30 seconds.
Stone Head HatchQuestEveryone nearSolve statue puzzle to reveal secret ladder.

Survival Strategies & Advanced Tips

Prison Island is a balancing act of risk versus reward. The following playbook blends fundamental strategy with high‑level tricks used by veteran raiders.
  • Route Planning: Start in lower‑risk biomes to build consumable reserves, then rotate to high‑value zones as the lobby thins out. Mark extractions on your mental map as you move.
  • Resource Management: Assign each party member a unique extraction consumable (fuel, fuse, token, key) to maximize flexibility if the team splits.
  • Noise Discipline: Walking, sheathing weapons, and using suppressed skills lets you slip past patrols — or flank rival teams — undetected.
  • Situational Awareness: Turn combat log pings up and music down so you never miss distant gunfire or spell impacts. Disengage if a third party crashes your fight.
  • Tempo Control: Clear a safe pocket near your chosen exit before farming final packs or bosses — nothing is worse than sprinting into fresh mobs while being chased.
  • Inventory Discipline: Drop low‑tier loot once encumbered. Movement speed often decides fights.
  • Exit Execution: Commit once patrols are down and lines of sight are covered. A half‑hearted channel at Grand Evac is an invitation to die.
  • Feign Extract: Tap the Grand Evac portal to bait enemies, cancel at 12 s, then ambush while they expose themselves.
  • Flash‑Bang Fuse: Blow Sunken Dam even if you don’t intend to exit — steam and debris obscure vision, letting you rotate elsewhere.
  • One‑Way Ticket: If solo with Rocket Fuel, use it early when spotted — better to bank moderate loot than die greedy.
  • Split Push: In trios, send one scout to open Mine Gate while the other two farm Scrag packs. Regroup and extract together.

Monsters, Bosses & NPC

The island’s challenge comes from its roaming monsters and rotating elite bosses. Study their patterns to choose safe routes — or set up ambushes.

NPC

NameGoodies
Jax Tier 3 Weapons and corresponding recipes
Ashley O'Connell Alchemy Stuff
Skrizzik
Skip Stones Triple Stats Tier 3 Artifacts and corresponding recipes

Roaming Monsters

MonsterHabitatThreat Profile
Undead WolvesNorthern VillageFast packs that applying deadly toxic debuff. You have to kite or CC them.
GhoulsNorth-West ruinsSlow but hit hard — interrupt heavy swings. Be careful with Ghoul that throwing bottle with poison - always wait for the throw and then focus the mob.
GoblinsSouthern forests, Castle RuinsMixed ranged/melee — pull in small groups. Goblin Splitters are very deadly - try to not pull a lot of goblins to prevent wipe.
ScragsEastern Pyramid & exitsElite brutes guarding portals — clear flanks first. Same as other scrags in open world, be patient and attack between their attack animations.

Bosses

NameDifficultyDescription
YagaHighYaga is an ancient necromancer whose mastery over death binds the restless dead to her will. Wreathed in shadow and crowned by swirling skulls, she dances her Blade Dance to shred flesh, then unleashes Seeking Death that both maim her foes and renew her own vitality. When the tide turns against her, she calls forth random Scrag minions to swing the battle back in her favor.
Armored TrollEasyArmored Troll is one of the seven bosses in the current implementation of the Prison Island. He is a very well telegraphed boss and very slow in general. Troll joins the battlefield with -30% Reduced Incoming Main Attack Damage Buff represented below the Health Bar. Currently Troll has no summoning mechanics unlike some other bosses within the Prison Island.
Goblin DruidMediumGoblin Druid is a cunning practitioner of primal magic, drawing power from the wild’s darker corners. With a bone-carved mask and satchels of venom at his belt, he transforms the battlefield into a tangled grove of chaos—poisoning foes, unleashing ravenous flocks, and calling forth savage beasts to obey his will.
Undead WolfEasyUndead Wolf is a savage revenant of fang and bone, reanimated by dark necromancy. Its hollow eyes burn with savage hunger as it prowls battlefields, shredding armor with its claws and infusing wounds with a lethal, ever‐worsening decay.
Werewolf RatVery HighA savage lycanthropic rodent twisted by dark rites, the Werewolf Rat prowls with feral cunning. Its twin claw strikes rend flesh to a bloody pulp, it hurls goblin thralls into the fray, and it flings severed heads with deadly precision—leaving nothing but ruin and rot in its wake.
Werewolf AlphaVery HighWerewolf Alpha is the feral chieftain of its twisted pack, towering above lesser beasts with rippling muscle and razor-sharp claws. Born of lupine savagery and dark rites, it rains destruction upon the unwary—leaping with thunderous force, unleashing brutal claw flurries, and devouring goblin thralls to fuel its ever-growing frenzy.
Werewolf SoldierVery HighWerewolf Soldier is a battle-hardened lycanthropic warrior clad in battered armor and wielding a massive halberd. Trained in brutal warfare, it punishes foes with lethal weapon throws and ferocious leaps, while rallying goblin auxiliaries to its side.