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INDIE GAME / GUIDE INDEX

Islets guide | Island connections, bosses, 60 upgrades and 44 achievements

Covers the main story, 16 bosses, directions to 60 upgrades, six ship parts and 44 achievements; remaining gaps stated · Updated 2026-10-13

If you cannot pass an obstacle, gain abilities on another island and return. Island connections change return routes, so check ground obstacles separately from air routes.

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Official Islets screenshot: Iko jumps on a rainy cliff beside hanging enemies — Game screenshot (officially distributed press material) · © Kyle Thompson / Armor Games Studios

Choose a guide by objective

Walkthrough

From the first island to Sky City, cores, ship weapons and dash, seals, the final battle and beyond 60 upgrades.

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All 16 bosses

Compare 16 ground and aerial bosses by location, unlocked route and response. Also covers late seals and GutGhoul's ship phase.

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Abilities and growth

Covers Double Jump, Slam, Shift/Cloud Arrows, Charge, two ship stages, shop prices and card selection.

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Collectibles and quests

Covers checking 60 upgrades, card-triggered treasure and revival quests, Snoot, GreyBird, rain, the hidden vending machine and Final Gate.

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60 upgrade locations

Organizes 60 papers across five islands by room landmarks and actions. Check the five-gravestone Slam order, three treasure-hunt papers and Cloud Arrows heights.

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44 achievements and Boss Rush

All 44 Steam achievements. Distinguishes purchases from cards, sword/arrow level 10, quest choices, Hard and zero deaths.

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Game information

Developer / publisher: Kyle Thompson / Armor Games Studios
Release / Early Access start: 2022-08-24
Platforms: PC
Genres: Metroidvania / Exploration action

What unlocks the next route?

If unsure of the next objective, check Sky City's guide and map markers. Recheck previously unreachable areas on old islands whenever you gain an ability.

What is missing	Acquisition/preparation	Next use
Double Jump	Grave Crawler	High platforms
Slam	Tomb of 1000 Spirits	Routes opening downward
Ship weapons	Give two Gear to Sky City's ship specialist	GrappleBot / MechaRat
Shift Arrows	Runaway Plant	Remote movement and switches
Cloud Arrows	Swamp Frog	Air platforms and crossing beams
Ship dash	Three additional Gear＋Propeller	Defender Unit
Charge Attack	Rogue Bot	Late-game progression and pickups
Boss Rush	Ending＋60 upgrades＋Final Gate	Additional Normal/Hard/zero-death challenges

Choose a guide by objective

See the walkthrough for the next story action, all bosses for avoiding attacks, and abilities and growth for revisits and card choices.

For remaining papers, see 60 upgrade locations. Treasure hunts and revival events are under collectibles and quests, and unlock conditions under 44 achievements.

Distinguish island exploration from air travel

On land, use the sword, arrows, dodge and acquired abilities. Air routes require ship upgrades; improving your ground sword does not replace an unacquired ship function.

The first Sky Pirates encounter is an evasion section before the ship is armed. The subsequent upgrade costing two Gear lets you attack aerial bosses.

What remains for a complete collection guide

The 60 upgrades are divided by island, room landmarks and pickup actions. This is not a coordinate map for every platform. N01's initial pickup screen, N14's connection to its nearest shrine and minimum abilities for every location remain under cross-checking. All five paid-gate locations and numerical values for every card are also still outstanding.

Get Wall Climb at the shrine with two stone heads in the ruins passage after connecting two islands. Do not confuse it with Stone Witch's reward; obtain the ship's Propeller separately.

Coverage and unconfirmed details

Added rooms, landmarks and checked routes for 60 upgrades. N01 has footage reaching the ceiling recess; the uncollected paper and choice screen remain under review. N14's paper and choice screen were confirmed, but its nearest-shrine connection remains unresolved. Minimum abilities for all 60, access before all connections, the remaining four paid Gates and every card value remain incomplete.
The original source checked map surroundings, on-site landmarks, pickup scenes for six Gear and the Motor through PC gameplay. Minimum abilities for all six and access before every connection remain untested.
Wall Climb's shrine and acquisition were checked in public PC gameplay by the source. A detailed coordinate-based island route and the shortest order for all abilities remain incomplete.
English and Spanish sources differ on Snoot's earliest trigger and Boss Rush unlock descriptions. The guide checks letters, the ending, 60 upgrades and Final Gate.
Japanese proper names, control keys, current-version hands-on inputs across every platform and every boss frame remain unverified.
Demajen's map was not imported because of its usage terms. An unobtained map is not counted as fully read or as having zero 25-character matches.

FAQ

Frequently asked questions (FAQ)

Q1 I cannot reach a new island. ▼

Check missing ground abilities separately from missing ship upgrades. The first ship upgrade needs two Gear; the next needs three Gear and Stone Witch's Propeller.

Q2 Do I need all 60 upgrades before the ending? ▼

You can collect missing upgrades after the story. Use the 60 count to check Final Gate and collection achievements; it is not mandatory to collect everything before the final boss.

Q3 Are all upgrade locations included? ▼

Island tables provide landmarks and pickup actions for 60 locations. N01's first pickup screen, N14's connection to the nearest shrine and minimum abilities for every location remain under cross-checking. This differs from hands-on guarantees for every platform or an exact terrain map.

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