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Eronoctosis: Put Yourself Together

Eronoctosis: Put Yourself Together

A 2-Player Networked Horror Co-Op game. Explore the deepest recesses of your mind to put yourself back together. Work together to defend yourself from its denizens.

Released Oct 10, 2021 Developer Dream Toaster Games Platforms Windows HorrorCo-opAtmosphericCo-op CampaignStylized
View on Steam ↗ Free (US · as of 2026-09-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.

90.5%positive1,896 reviews
Recommended · 4 found this helpful

“Who are you? Eronoctosis gave my friend and me a good headscratching on the base game; it was hard to understand what "Put Yourself Together" meant. The game became clearer, or so I assume, once we started the Devote Yourself DLC. wrath and lust From what I understand, the…”

— a player, Steam review · 7 hrs played
Recommended · 1 found this helpful

“Fun yet short co-op game with a nice aesthetic to it and an interesting gimmick for both players even if I found it a bit too short. I did not particularly find it scary or anything like that if you are looking for a scary co-op game to play with a friend but it's free so I'd…”

— a player, Steam review · 1 hrs played
Recommended · 1 found this helpful

“This game is fun, and honestly really fun to play with your friend NOTE: That first enemy is called a schlong by the way”

— a player, Steam review · 4 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. History through 2025-07 via SteamCharts; self-collected from the Steam API since Aug 2026.

231all-time peak
0 25 50 2022 2023 2024 2025 No data collected for this period No data collected for this period No data collected for this period No data collected for this period No data collected for this period 36 avg · Oct 2021

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

36achievements
1.8%median completion
0.7%rarest: B-Side Devoted Delver of Solastalgia
73.5% of players 51.3% of players 45.8% of players 43.9% of players 43.5% of players 33.9% of players 27.7% of players 27.7% of players 15.2% of players 8.2% of players 6.9% of players 5.8% of players 5.7% of players 2.5% of players 2.5% of players 2.1% of players 2.0% of players 2.0% of players 1.8% of players 1.7% of players 1.7% of players 1.7% of players 1.7% of players 1.6% of players 1.6% of players 1.5% of players 1.3% of players 1.3% of players 1.3% of players 1.1% of players 0.9% of players 0.9% of players 0.8% of players 0.8% of players 0.7% of players 0.7% of players 73.5% 0% most earned rarest
Almost everyone has
73.5%Please stop laughing. Please stop laughing. Please stop laughing. Please stop laughing. — Woken up by Gumhead
51.3%I HATE PICTURES I HATE PICTURES I HATE PICTURES DONT LOOK AT ME — Woken up by Gazer
45.8%Disturbed Slumber — Woken up 5 times
Rarest badges of honor
0.7%B-Side Devoted Delver of Solastalgia — Beaten Remix DYTA-B
0.7%Devoted Delver of Solastalgia — Beaten Remix DYTA-A
0.8%B-Side Explorer of Solastalgia — Beaten Remix PYT-B

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Oct 26, 2023
SOLASTALGIA Free Update & DEVOTION 30% Off!

Eronoctosis: Solastalgia DOUBLES free content & the expansion! Free Update for all! I'm a stranger in my own life The nostalgia burns behind my eyes I have to go back New mechanics New nightmares All

Oct 24, 2023
Eronoctosis Solastalgia Update

I'm a stranger in my own life The nostalgia burns behind my eyes I have to go back Eronoctosis: Solastalgia I've put myself together. I've emerged with another. But, the ground shifts beneath my feet

Nov 17, 2022
Eronoctosis: Devote Yourself to Another is now $4.99!

Eronoctosis: Devote Yourself to Another now $4.99! PLUS you can now play with MUTATORS! Play a faster game. Or Slower. Or with MORE monsters! Oh, and did we mention they stack? Want a hyper fast game?

Oct 25, 2022
Steam Scream Fest and October Content Patch

Hello, ero-delvers! As part of this year's Steam Scream Fest, we are discounting the Devotion DLC! It'll be 50% off for the next few weeks, so you and a special friend can get your shivers on for a ha

Jun 23, 2022
Devote Yourself To Another Available NOW!

Hi All! Today, we are excited to welcome you to the next chapter of Eronoctosis. Devote Yourself Together is now available on Steam ! This DLC expansion adds a completely new color palette , three new

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-26.

GenresAction, Adventure, Indie, Free To Play
Player tagsHorror · Co-op · Atmospheric · Co-op Campaign · Stylized · Survival Horror · Psychological Horror · Psychological · Action-Adventure · 3D · Adventure · First-Person (Steam store community voting)
FeaturesMulti-player · Co-op · Online Co-op · Steam Achievements · Family Sharing
LanguagesEnglish * *
Achievements36
Official sitehttps://dreamtoaster.games/eronoctosis/
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS: Windows 10 Processor: AMD A8-7600 (3.1 Ghz) OR Intel Core i3 4170 (3.7 Ghz) Graphics: Nvidia GPU GeForce GTX 650 / AMD GPU Radeon HD 6850 / Intel Iris Pro 5200 Storage: 150 MB available space