Islet Online

12 Feb 2019
2+players

Sandbox · RPG · Anime

Islet Online is a sandbox-style MMORPG. It is all about digging and placing bricks to build your own land. And with various materials from wildlife, bricks can be combined to make useful items, too. Whenever you act, your character gets experience.

77%Mostly positive540 Steam reviewsSteam Deck playable

Who can play

Store

Split-screen is not confirmed.
Online on PC. How many can join is not confirmed.
Free to play.

SteamPrice on SteamPlay free

Free to play

How it plays

Is it good

77%

Mostly positive on Steam

of 540 reviewsRead on Steam (opens the store in a new tab)

Steam Deck Playable

Every way to play together

Steam lists online co-op for PC. Free to play. Player counts are not confirmed yet. 77% positive of 540 Steam reviews.

- PC
PCStore (how we check facts)
Same screen
Not listed
Same room, own screens
Not listed
Online
2+players, co-op and versus

Play modes here come from the Steam store listing, which does not give player counts. How we check facts

Quick facts

Developer: Morenori Soft
Platforms: PC
Released: 12 Feb 2019 on PC
Languages: Text in 15 languages

In these lists

Answers

Updated October 27, 2026

Does Islet Online have couch co-op?: No same-screen play is confirmed. The Steam listing does not include it on PC. Online play is the way to play it together.
Do you need two copies of Islet Online?: No. It's free to play.; One of 1,371 co-op games where one copy is enough
What platforms is Islet Online on?: PC.; One of 3,994 co-op games
Does Islet Online work on Steam Deck?: Yes, with some extra steps: Steam rates it Playable for Steam Deck.
Is Islet Online free?: Yes, it's free to play.

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