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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

Finish 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.

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.

Failure to extract will result in the key card received being 1 level lower than the failed one

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 quality is static per tier group: T2 (levels 1-4) = 0%, T3 (levels 5-8) = 100%, OC T3 (levels 9-12) = 200%.
Loot chance increases linearly by +20% per level, starting at 0% (level 1) up to 220% (level 12).
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

LevelCountLoot QualityLoot Chance
1 – 410%0% - 60%
5 – 82100%80% - 140%
9 – 123200%160% - 220%

Secondary Affixes

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

Primary Affixes Effects

AffixEffect
ColossalMonsters/Bosses gain +30% HealthHealth
RendingMonsters/Bosses gain +30% damage
ReinforcedMonsters/Bosses gain +300 ArmorArmor
ResistantMonsters/Bosses gain +300 Magic ResistanceMagic Resistance
RegeneratingBosses regenerate 0.03% max HealthHealth every 1 second
Monsters regenerate 2% max HealthHealth every 1 second
PrecisionMonsters/Bosses gain +30% Physical Crit ChancePhysical Crit Chance & Magical Crit ChanceMagical Crit Chance & Physical Crit PowerPhysical Crit Power & Magical Crit PowerMagical Crit Power
VampiricBosses gain 30% LifestealLifesteal
Monsters gain 50% LifestealLifesteal

Secondary Affixes Effects

AffixEffect
DeceleratingHits apply stacking –5 % Movement SpeedMovement Speed debuff.
ContagionAttacks inflict DoT that deals 1% max HealthHealth per sec for 30s and ramps up by 5% each tick.
OvergrowthAll monsters gain +5 % power every minute.
Corrupted SludgeDead mobs leave 4 s pool dealing 20 % max HealthHealth / s.
EmpoweringMob deaths give nearby allies +20 % damage.
ErosiveOn death apply stacking 3s DoT: 3% max HealthHealth per tick.
RagingBelow 30 % HealthHealth mobs deal +30 % damage & ignore CC.
Combustible3 s after death explode for 40 % max HealthHealth & apply Burning (5 % / s, 8 s, stacks).
AimedMob death bolts deal 40 % hero max HealthHealth to targets >5 m.
MeteoricRandom meteors strike for 80 % max HealthHealth.
EntanglingBomb spawns at player, explodes rooting all in radius.
Shattered SoulsOn death mobs' soul fly towards the player to burn 30% max ManaMana
Toxic MiasmaMob death spawns a 4m miasma cloud that follows the player dealing 7.5% max HealthHealth per sec
Sacrificial BoonMob death buffs nearby enemies healing them for 30% and increasing their max HealthHealth by 30%. Stacks

Example: Level 7 Keycard with three secondary affixes ⇒ 120% base loot chance + 90% from secondary affixes = 210% total loot bonus. An item with a 50% base drop rate becomes 155% (1 guaranteed drop, 55% chance at a second).

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. These tactics focus on staying alive and making it out with as much as possible.

Core Survival Tactics

  • Route Planning: Start in lower-risk biomes to build reserves, then move to high-value zones when ready. Remember where you've been and where you haven't so you know where to run if things go wrong. Mark objectives and points of interest in your head or with map pins for future runs.
  • Resource Management: Give each party member a different exit item as you drop em (fuel, fuse, token, key) so if the group splits under time pressure, each can reach a different exit if there's no time to clear middle one.
  • Noise Discipline: Every action makes noise: attacks, skills, healing, and monster screams all increase nearby mobs' aggro range. Longer fights risk pulling more packs.
  • Tempo Control: Clear a safe pocket near your exit before farming last-minute packs or bosses to avoid running into fresh mobs while escaping death.
  • Prophet Encounters: Multiple Prophets roam and patrol the island with massive aggro ranges. When you hear their scream and see the ground pulse, one has already locked onto you. Their minions cannot be outrun on most new players setups. Kite and kill them quickly while cleansing bleed before it stacks. If you don't have a wide area cleared somewhere on island first, then leashing him will be very hard.
  • Situational Awareness: Keep combat log pings audible and music low so you catch sound cues from mobs and bosses.
  • Inventory Discipline: Drop low-tier loot when having too much of it, it's better to trash 20 ccoins than miss purple kit.
  • Exit Execution: Leave only when patrols and threats around your exit are cleared, dying in last seconds bcs you forgot to clear something and it pulls never feels good.
  • Flash-Bang Fuse: Blow the Sunken Dam even if you won't exit, steam and debris break mob line of sight, letting you reposition.
  • One-Way Ticket: If solo with Rocket Fuel, use it early when spotted by dangerous packs or elites; better to bank moderate loot than die greedy.

PvP Strategies

  • Feign Extract: Tap the Grand Evac portal to bait enemies, cancel at 12 s, then ambush while they expose themselves.
  • Third Party Timing: Wait for two teams to engage, then strike when both are low on resources and health.
  • Exit Camping Counter: If enemies are camping your preferred exit, use consumables to open alternate routes or create diversions at multiple exits.
  • High Ground Advantage: Control elevated positions near extraction points for better vision and escape routes.
  • Split and Flank: Send one team member as bait while others circle around for surprise attacks from behind.
  • Extraction Rush: Time your final extraction when other teams are distracted by bosses or busy fighting each other.

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 Triple Stats Tier 3 Artifacts and corresponding recipes
Skrizzik
Skip Stones Alchemy Stuff

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.

Rare Elite Enemies

Rare Elite Enemies on the PvP version of the Island can spawn, with a 5% chance they wear an item of cosmetic clothing which will drop upon defeating them, along with one of the following buffs!
Elite EnemyBuff Effect
Exalted GhoulIncreases max HealthHealth by 15% and recovers 1% HealthHealth per second
Exalted Hound15% Movement SpeedMovement Speed and applies a dot on hit dealing 10% of the damage done
Exalted Goblin15% Attack SpeedAttack Speed and 15% HasteHaste
Exalted ScragBleedBleed Resistance
Exalted EvisceratorPowerful mob that can inflict deadly BleedBleed effect
Damned ProphetVision Range increased by 5 meters. Detect invisible enemies

Bosses

NameDifficultyDescriptionBuff on Kill
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.200 ArmorArmor
Damned ProphetMediumThe Damned Prophet drifts through the mist-choked courtyards of the prison island looking for any lost souls that dare to hunt here. His presence alone seems to poison the air — a lingering dread that clings to the crumbling stone walls and rusted bars. Chains rattle when he passes, though none bind him. Prisoners whisper that these prophets once foresaw their own death here and embraced it, returning as the heralds of every other soul’s end. Their patrol around the island isn't a solitary one, they move with their two lieutenants, The Eviscerator's. These ferocious aggressors, armed with sharpened bones of their victims, rushing towards them to inflict heavy damage and bleeding.
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.30% CooldownCooldown Reduction
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.3% max Health RegenerationHealth Regeneration
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.15% LifestealLifesteal
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.120 Attack PowerAttack Power / 240 Spell PowerSpell Power / 240 Heal and Shield PowerHeal and Shield Power
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.20% Physical Crit ChancePhysical Crit Chance & Magical Crit ChanceMagical Crit Chance & Physical Crit PowerPhysical Crit Power & Magical Crit PowerMagical Crit Power
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.3% Magic ResistanceMagic Resistance