Steam app 1621690 · updated 25 Oct 2026, 15:14 UTC
Explore a vast cavern of creatures, relics and resources in a mining sandbox adventure for 1-8 players. Mine, build, fight, craft and farm to unravel the mystery of the ancient Core.
717 hourly samples, with the daily peak drawn over them. Weekends are shaded.
57 months, March 2022 to November 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
23 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
30 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 567 hourly samples from 08 Oct, which is as far back as the source keeps every hour. Weekends are shaded.
7 days as the curve, each the highest figure that day. Behind it, 150 hourly samples. Each dip is a night. Weekends are shaded.
| Language | Full audio |
|---|---|
| English | |
| Simplified Chinese | |
| Thai | |
| German | |
| Japanese | |
| Korean | |
| Spanish - Spain | |
| French | |
| Italian | |
| Portuguese - Brazil | |
| Traditional Chinese | |
| Russian | |
| Ukrainian |
A blank audio cell means full audio was not marked in the returned language list.
Riders of the Underground
Watch on Steam
Void and Voltage - Out Now
Watch on Steam
Bags and Blasts
Watch on Steam59 achievements in total.
50 developer announcements, Jun 2025 to Oct 2026 · times in UTC
CK 1.3.0.6 - Hotfix Bug Fixes Fixed an issue that would prevent Steam Free Weekend players from entering a world.
Patch notesGrab your pickaxes and get ready for a Free Weekend filled with exploration, base building, boss battles, farming, fishing, magic, and secrets to uncover! Howdy, new Explorers, and welcome to the underground. We’re so excited for you to…
Bridie1.3.0.5 - Stability Patch Modding Water painted in the ModSDK's custom scene editor now uses its in-game color, making it easier to tell water types apart. Tiles without an icon in the ModSDK's custom scene editor now get a button preview…
Patch notesHappy autumn, Explorers 🍂 We hope you're loving our latest update, Riders of the Underground! September has been a busy month for us, but we're so excited to be able to share all our hard work with you and we're very grateful for all the…
Bridie1.3.0.4 - Hotfix Bug Fixes Fixed spike traps, drills and certain other hazards not dealing damage. Fixed some traps and other continuous damage sources having a short delay before doing their first damage tick.
Patch notes1.3.0.3 - Stability Patch Gameplay Mounts are no longer permanently removed when attacked by bosses. Game Balance Increased the figurine drop chance for Void Caveling, Void Caveling Shaman, and Void Caveling Brute. Modding Increased the…
Patch notesCK 1.3.0.2 - Hotfix Bug Fixes Fixed an issue where drills would cause damage on the first game tick after receiving power. This broke some circuitry builds that rely on drills for item sorting.
Patch notesWe’ve just reached the first stop on the Road to the Maw, which means it’s time to saddle up and head on out in Riders of the Underground! This major content update brings some exciting new features to the ancient and mysterious world of…
Bridie1.3.0.1 Major Update - Riders of the Underground Gameplay New sub-biome: Moss - Found in the Forgotten Ruins biome. New cattle: Orex - Found in the Moss sub-biome. All cattle can now be turned into mounts by using the following new items on…
BridieGiddy up, Explorers 🤠 Core Keeper’s 1.3 Update, Riders of the Underground, is coming on September 21st! We’re so excited to be bringing you an update with a whole host of new features and content that you’ll be able to enjoy across all…
BridieAugust has been a month of exciting announcements and teasers for Core Keeper, and we're so excited to recap all this fun activity for you, Explorers. Let's jump straight in with the big news... Road to the Maw Announcements! We just…
BridieThere's always something new to discover in the underground and it looks like our wayward Explorer found the perfect test subject for their latest creation! 👀 A transcript of this journal entry has been provided below the image.…
BridieIntroducing “Road to the Maw” – our next 3 major content updates for Core Keeper! We’re so very excited to share our plans with you in more detail below, and you’ll find an overview in the roadmap image in this post (it’s also visible on…
BridieHey Explorers, we hope you're having an awesome summer. We don't know about you, but here in the Northern Hemisphere, it has been incredibly warm and bright. You might be aware that in Sweden, it's customary for us to take some vacation…
BridieHi Explorers! It's shaping up to be a scorcher of a summer here in the Northern Hemisphere. It's so hot, it's making the Desert of Beginnings look cool 🌞 We've got lots of fun community activity to share with you from the month of June…
Bridie1.2.1.5 - Hotfix Bug Fixes Fixed a crash caused by interacting with S.A.H.A.B.A.R.'s summoning console.
Patch notes1.2.1.4 - Stability Patch Bug Fixes Fixed an issue that caused Beds to kick players out after one frame. Fixed an issue where it was possible to hold to craft items from boss statues before they were unlocked. Enemies that destroy tiles…
Patch notes1.2.1.3 - Stability Patch Gameplay The following items can now be picked up with a hoe or shovel: Explorer Proximity Sensor Enemy Proximity Sensor Materializer Steam Achievements will no longer trigger if use of console commands is detected…
Patch notes1.2.1.2 - Stability Patch Gameplay Circuits, conveyor belts, drills, doors, levers, turrets, and pressure plates now regenerate health over time, matching the behavior of other placeable objects. Audio Added a Master volume option.…
Patch notes1.2.1.0 - Minor Update Gameplay Added the ability to label chests. Introduced a new Casual character type that: Keeps inventory after death; Has a reduced hunger drain; Has larger parry windows; Has shorter healing and mana potion…
Patch notesSurprise! We’ve got a fun little content update coming your way now that you’ve had a chance to explore some of Breaker’s Reach and the new features added in our Void & Voltage Update! Tomorrow’s 1.2.1 Core Keeper update will include some…
BridieHowdy, Explorers! We hope you've had an awesome April. It's getting warmer here in the Northern Hemisphere and we're looking forward to a great summer. And, hey, if it's still pretty grey where you are, you can always spend some time in the…
BridieHey Explorers, we thought it was high time for another community update, especially now that you've had plenty of time to enjoy Void & Voltage. So, let's look back over the month of March and see what we've been up to...Explorer's Guide…
Bridie1.2.0.7 - Stability Patch Bug Fixes Fixed an issue where the player inventory could be reverted to a previous state when connecting to a world whose save file had been copied from another save slot or machine. Fixed a bug where save files…
Patch notes1.2.0.6 - Stability Patch Miscellaneous Chests with emissive textures now glow in the dark. The Large Quarry Timber's position when placed on the ground now correctly matches its visual placement indicator, and the item now shows a rotated…
Patch notesWe’re very excited to announce the launch of Core Keeper’s official merchandise store! We’ve had multiple requests for merchandise from the community over the years, and we’re now delighted to be able to show you everything we’ve been…
Bridie1.2.0.5 - Stability Patch Gameplay Increased the maximum vibration intensity on controller. The Shredder now returns the full amount of Scrap Parts when dismantling items. The Giant Bug Brain no longer drops from Ra-Akar, and is no longer a…
Patch notesWe’ve been working on something special, Explorers! We’re excited to reveal Core Keeper’s official Explorer’s Guide – a handy, digital guide for new and returning Explorers to get to grips with all things Core Keeper.…
Bridie1.2.0.4 - Hotfix Bug Fixes Fixed an issue that caused texts in Korean to be garbled.
Patch notesAre you ready to uncover the mechanical mysteries of Breaker’s Reach and venture into its Void sub-biome? Well, grab your most-powerful pickaxe, reinforce your armour, get ready for the next steps in your underground adventure – Core…
Bridie1.2.0.3 Major Update - Void & Voltage Gameplay New Biome: Breaker's Reach - Found in the far north. New Breaker's Reach Void sub-biome. New Boss: S.A.H.A.B.A.R. - Found in the Breaker's Reach biome. New Hydra: Oblidra the Void Lord - Found…
BridieHi Explorers! We’ve got some important information about Core Keeper's Void & Voltage update to share with you today. Due to an issue encountered during the final stages of platform submission and approval, we are unable to release Void &…
BridieWe hope your 2025 has been full of joy, Explorers. We know ours has (in no small part, thanks to you!). As we approach the end of the year, things are winding down here at Pugstorm and Fireshine Games and we wanted to take a moment to wish…
BridieGreetings Explorers! We know you are all very excited for 1.2, and we can't wait for you to experience this major content update in January. For now, we have something else exciting to share: Steam Workshop and notable modding updates!…
BridieCK 1.1.2.10 — Hotfix Bug Fixes Starting a world while not having an internet connection no longer causes the loading screen to stay indefinitely.
Patch notesWe’re positively buzzing with excitement to let you know that Core Keeper’s next major content update, Void & Voltage, is coming on January 28th 2026! We had a lot of ambitious ideas for this one, which we’ve added along with plenty of…
BridieCK 1.1.2.9 — Stability Patch Modding When playing on the moddebug Steam branch, the game no longer automatically restarts with mods disabled if a mod fails to load. Bug Fixes Fixed a bug where only the first new character created in a…
Patch notesIt's hard to believe it's already time for the Steam Awards! Since Core Keeper's 1.0 launch, we've released our Bags & Blasts update and we’ve been pouring a lot of love into our next major content update, which we’ll reveal more about…
BridieCK 1.1.2.8 — Hotfix Bug Fixes Upgraded Unity engine from version 6000.0.58f2 to 6000.0.59f2. This fixes a bug in the engine that could cause the game to crash from particle system memory becoming corrupted.
Patch notesCK 1.1.2.7 - Hotfix This hotfix fixes some sources of crashes following the Unity 6 engine upgrade in 1.1.2.6. These fixes are based on player reports, and we do not know for sure if this addresses all crash sources. If you continue…
Patch notesCK 1.1.2.6 - Engine Update Patch Miscellaneous Upgraded Unity engine from version 2022.3.62f2 to 6000.0.58f2. Upgraded Unity Addressables package from version 1.22.3 to 2.7.3. Bug Fixes Added a missing translation for the Multiplayer…
Patch notesCK 1.1.2.5 - Engine Update Patch Miscellaneous Upgraded Unity engine from version 2022.3.50f1 to 2022.3.62f2.
Patch notesHey Explorers, we hope you're having an awesome month. We don't know about where you are, but the weather seems to be cooling down and it finally feels like we're heading into autumn. We've had some awesome comments from the Core Keeper…
BridieHi there Explorers. We're hosting our first-ever Reddit AMA tomorrow on September 10th from 16.00 to 19.00 UTC. Join us over on r/corekeepergame to ask us, the developers, your questions! What is an AMA? "AMA" stands for "Ask Me Anything"…
BridieGameplay: Dedicated servers now support joining by using IPv6 address. Improved –ip arguments description on dedicated servers. For clarity, changed GameID to Steam GameID when server provides the connection info to player to emphasize that…
Patch notesAdventuring in the underground is a lot of fun, but it pays to be prepared...and it looks like our wayward Explorer has been neglecting chores back at their base! Thankfully, they seem to have a knack for problem solving, and they've come…
BridieHey there Explorers, we’ve just launched a patch for Core Keeper that includes a cool new update for dedicated servers! Traversing the underground is always fun with friends, but up until now, Explorers playing on dedicated servers all had…
BridieGameplay: All PC platforms now support joining and playing in Steam dedicated servers using direct connections Added instructions how to properly support direct connections to README.txt Dedicated servers using direct connections can now be…
Patch notesHi there Explorers! Gosh, it's been a hot minute since we've had a community update. We were doing these weekly at one point, but we think a monthly cadence will be a little more enjoyable for those of you who wish to keep up with all the…
BridieMiscellaneous: Fixed an issue that prevented some mods from loading correctly on non-Steam PC platforms. Graphics: Cattle Feeding Trays no longer clip into walls. Performance: When a world is loaded, the game now despawns some mobs if there…
Patch notesEverything Steam lists as add-on content for this game, newest first. Prices are left out on purpose: the store answers this page in one currency and it is not the reader's.
| Name | Platforms | Released |
|---|---|---|
| Core Keeper - Explorer's Guide | WindowsLinux | 05 Mar 2026 |
| Core Keeper Soundtrack | WindowsmacOSLinux | 09 Jan 2025 |
What Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | CoreKeeper.exe | windows | ||
| Launch | CoreKeeper | linux | ||
| Core Keeper (OpenGL) | CoreKeeper | -force-opengl | linux | |
| Core Keeper (no mods) | CoreKeeper.exe | -safemode | windows | |
| Core Keeper (no mods) | CoreKeeper | -safemode | linux |
It runs on public data and somebody's spare time.
https://paypal.me/KintaroPalPaythanks-kintaro@outlook.com0x4d559C765AA8BFe336E36d5b76024926767eD38dTJtctWU9uetJaTBoSybd1RErW7n9duTKVG