Entities List: Rivals, Rival Rigs, Pirates & Sea Monsters
Updated 2026-09-02 · Roblox 100 Days At Sea
Entities in 100 Days at Sea are every non-player character you can damage and kill. Only seagulls and crows are passive. Everything else is hostile and splits into eight enemy types: ghost pirates, Buku tribe, rival survivors, corrupt creatures, aliens, sea monsters, biome creatures, and animals. Bosses have their own page: all bosses.
Rivals are the human survivors with swords and guns found on the three radio tower islands (5 each) and on the three rival rigs. Press the transponder on any radio tower to locate a rig: the first press spawns the small rig (4 rivals), the second the big rig (8 rivals), the third the huge rig (15 rivals). Melee rivals always drop a stew, ranged rivals always drop ammo, and each rig's purple chest unlocks a container structure that raises your day multiplier.
Every entity also drops essences, so they are not repeated below. HP and damage values are approximate client-side measurements, not code values.
Non-hostile entities
| Entity | HP | Drop | Notes |
|---|---|---|---|
| Seagull | Lowest in game; one-shot by the harpoon (1.5 dmg) | Cooked bird, sometimes essences | Flies low enough to harpoon or shoot |
| Crow | Same as seagull | Cooked bird, sometimes essences | Same behaviour as seagull |
Harpooning a bird drags the meat back to you, so birds are a free food source. Penguins are not entities (they cannot be damaged) and fishing catches are only an animation.
Rival survivors and rival rigs
Rivals live on islands with giant satellite dishes (radio towers) and on the oil rigs those towers point you to.
| Rival type | Approx. HP | Guaranteed drop | Where |
|---|---|---|---|
| Rival survivor (melee) | 100-140 | 1 stew | Radio tower islands, all three rigs |
| Rival survivor (ranged) | Not documented yet | Ammo | Radio tower islands, all three rigs; keep moving to dodge shots |
Melee rivals on the huge rig carry a ghost cutlass instead of a knife. Rivals show up with different swords and guns on different visits.
The three rival rigs
| Rig | Rivals | Loot on the rig | Purple chest unlock |
|---|---|---|---|
| Small rig | 4 (3 melee, 1 ranged) | 4 big crates, 4 pallets, 1 gas drum, 2 junk engines, 1 chest, 2 doubloon chests | Container Shelter |
| Big rig | 8 (6 melee, 2 ranged) | 5 big crates, 5 pallets, 3 gas drums, 6 junk engines, 2 chests, 6 doubloon chests | Makeshift Building |
| Huge rig | 15 (10 melee, 5 ranged) | 4 big crates, 2 pallets, 5 gas drums, 2 junk engines, 2 metal beams, 2 chests, 7 doubloon chests | Outpost |
Rig notes:
- Rig order (small, big, huge) depends only on how many transponders you have pressed, not which tower you use. You can press it without killing the rivals.
- The small rig is usually visible from base; the big and huge rigs spawn further out.
- Rig doubloon chests pay around 7-8 doubloons instead of the usual 15.
- Each container item can be crafted once discovered. A second copy does not raise the multiplier. Place them on the fisherman's island so special nights cannot destroy them.
- The badge "There can be only one" is for defeating all 3 rival rigs in a single session.
Ghost pirates
| Entity | Approx. HP | Drop | Where | Tip |
|---|---|---|---|---|
| Ghost Pirate | 100-130 (50 in the day 1 night raid) | Essences about 2/3 of the time; corpse worth 1 glue | Pirate islands, cauldron treasure island, ghost galleon, pirate raids, pirate stronghold | Use ranged weapons against groups |
| Ghost Pirate Gunner | 90 | Same as above | Same as above | Keep moving to avoid bullets |
| Ghost Bombardier | 90 | Same as above | Ghost galleon, high-day pirate raids | Shows its AoE zone before firing; step out of it |
| Ghost Pirate Captain | 400 | Same as above | High-day pirate raids, pirate stronghold | More HP and damage; fight it at range |
The first night of every run is a ghost pirate raid. Corpses go into the crafting table for +1 glue each.
Buku tribe
| Entity | Approx. HP | Drop | Where |
|---|---|---|---|
| Buku Buku (sword) | 25 | Sometimes meat | Many islands, Buku raids |
| Buku Boku (bow) | 45 | Sometimes meat | Many islands, Buku raids |
| Buku Poku (spear) | 85 | Sometimes meat, sometimes a Poku Poku spear | Many islands, Buku raids |
| Buku Toku (shield and spear) | 200 | Sometimes meat | High-day Buku raids |
Buku raids happen in daytime with no warning and do not stop the timer. They are low-threat unless you are AFK. The Poku Poku is slightly better than a machete; see weapons.
Corrupt creatures
| Entity | Approx. HP | Approx. DMG | Drop | Where |
|---|---|---|---|---|
| Corrupt Crewmate (axe) | 100 | Not documented yet | Its corpse | Cargo ship |
| Corrupt Officer (gun) | 100 | Not documented yet | Its corpse | Cargo ship |
| Corrupt Saber Yielder | 375 | 35 | Rarely its purple laser | Corruption dungeon |
| Corrupt Minigunner | 500 | Not documented yet | Occasionally a minigun | Corruption dungeon |
| Chest Mimic | 200 | Not documented yet | Not documented yet | Corruption dungeon; kill it before trying to open it |
| Red Jellyfish | 150 in the boss room, 400 elsewhere | Not documented yet | Jar of Jelly | Corruption dungeon |
| Blue Jellyfish | 300 | Not documented yet | Jar of Jelly | Corruption dungeon |
Almost any entity can also spawn in the explosive section of the corruption dungeon.
Aliens
| Entity | Approx. HP | Drop | Where |
|---|---|---|---|
| Alien | 10 | Nothing beyond essences | Alien raids, Dynamite alien island |
| Alien Warrior | 110 | Its corpse, sometimes an Energy Blade, sometimes an alien fruit | High-day alien raids, UFO and Ray-Gun alien islands, one in the corruption dungeon |
Small aliens are the weakest hostile entity in the game; warriors are about as strong as a ghost pirate. Clearing an alien raid drops a transponder that spawns one of the four alien islands about 3 km from base.
Sea monsters
| Entity | Approx. HP | Drop | Where | Behaviour |
|---|---|---|---|---|
| Shark | 150 | Shark filet | Open water everywhere outside the two biomes | Damages players in the water or on slow boats |
| Orca | Not documented yet | Not documented yet | Ice biome water | Same threat as the shark |
| Red monster (giant axolotl-like) | Not documented yet | Meat skewer | Fire biome water | Sticks out its tongue and shoots it at players, hitting you even on a boat |
Biome-specific creatures
| Entity | HP | Drop | Where |
|---|---|---|---|
| Molten Golem | Not documented yet | Its corpse, used to summon the Lord of Lava on the Volcano island | Top of the three fire-biome towers |
| Ice Bear | Not documented yet | Meat (community-reported, unconfirmed) | Penguin islands, ice biome |
| Ice Wolf | Not documented yet | Meat skewer | Penguin islands, ice biome |
Other animals
| Entity | Approx. HP | Drop | Where |
|---|---|---|---|
| Boar | 96 | Meat | Some islands |
| Crab | 10 | Crab sticks | Some islands |
The Anglerfish
The Anglerfish is a special case: it cannot be killed as far as anyone has confirmed, but the ice staff auto-targets it, so the game treats it as an entity. It appears every night and vanishes at morning. Outside the bonfire's limits it chases players, its eyes and lamp turn red, it bites, and your screen glitches when it is close. It can leave the water, cross islands, and fly to reach raised dungeons (not the corruption dungeon). Step inside the bonfire's limits and it switches to another player outside; if everyone is safe it wanders aimlessly. An Angler Flare draws it in and makes it passive for about 10 seconds. Some challenge modifiers make it stronger.