Lost Island is the map players point new ARK owners to, and not only because it is free. It carries three creatures the base Island never had, a self-contained boss, and enough terrain variety to learn the whole game on one map.
ASA status: Lost Island is a free map on ARK: Survival Evolved. On Survival Ascended it had not been released as of late 2026 — no confirmed date. Content here comes from ASE; expect the same creatures and boss when it arrives on ASA.
The conclusion up front: Lost Island is the only standard map where you get the Dinopithecus, Amargasaurus and Sinomacrops without paid content. That is why it tops the “which map should I play” search.
Why play Lost Island
- Free and self-contained. No DLC purchase, and it has its own boss, so you can complete a full progression arc on one map.
- Three exclusive creatures. The Dinopithecus, Amargasaurus and Sinomacrops appear here and on very few other maps.
- Terrain variety. Jungle, volcano, snow, and coastline in one space, which means most resource types are a short flight apart.
The unique creatures
| Creature | What it is | Why you want it |
|---|---|---|
| Dinopithecus | A pack primate | A strong combat mount that fights in a troop; also the source of the map’s boss tribute |
| Amargasaurus | A spined sauropod | A hauler with a posture attack; tanks well for its weight class |
| Sinomacrops | A small gliding flyer | Early scouting and a gateway to the map’s harder zones |
Best base locations
- Central volcanic crater. Close to metal, crystal and obsidian, and ringed by high ground that limits ground raids.
- Central lake. A safe water base with fish and proximity to most biomes; weak only against flyer raids.
- Western cliff coves. Defensible, hidden, and good for a first base before you move somewhere central.
What to tame first
- A Sinomacrops or Pteranodon for scouting the map’s size.
- A Trike or Stego for early wood and berry gathering.
- A Dinopithecus pack for the combat you need before the boss.
The boss gate
The Dinopithecus King is Lost Island’s arena boss. Like the other map bosses it needs tribute creatures and a prepared mount, so treat it as the map’s end goal rather than a mid-game detour.
The three mistakes that waste a start
- Building in the open jungle. The predators here roam in packs; a cliff or crater base survives longer.
- Ignoring the Sinomacrops. It is the fastest way to learn the map’s distances.
- Rushing the Dinopithecus King. The boss needs a real tribute set and a combat mount, not a fresh Trike.
A quick checklist
- Pick a crater or cliff base, not open jungle.
- Tame a flyer before anything else.
- Grind a combat mount before the boss.
- Use the three uniques as your progression markers.
For the tame behind each name, see the creature taming pages. For the boss itself, see the boss guide. For the settings that shape the map, see single player settings.