Where did the mice go?
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🤯 Entering a hole lead you to anywhere in the house, but going back the way you came won't lead to the same room.
😌 To make this challenge not a headache, 2 extra keys have been added and the algorithm settings have been tweaked so key items are less prone to be long to get.
✏️ More info in the Wiki 🖼️ Thanks Maplestar for the painting
Submit your best run of Portal Palace II as a video on the Discord server, the best time at the end of the month will receive a Steam key of Randomice!
- Portals can be decoupled and have a different way in and out. - Decoupled portals seed start with the Gourmet Medallion in hand, otherwise it's possible to be soft-locked. - Mystery Mansion can now feature decoupled portals, as well as dark rooms like in Dark Den. - PreventQuestCycles setting implemented, making the algorithm aims avoiding excessive quest cycling, such as a Euro leading to a Peanut, which in turn leads back to a coin. This setting is off by default, and is on only for Portal Palace II. - Getting a laundry pod from Vyna doesn't cost a hint. - Improved how the check counter looks in chinese and japanese. - Painting added on the whiteboard. - Pressing LB/RB while viewing the whiteboard will cycle through challenges of the corresponding page. - Replaced a symbol from the captcha game by an easier one. - Fixed a wrong warp bug while being scooped by a net very close to a upper hole side. - Fixed some generations that would put extra copies of some voices (Mati, Puro, Polo and Bari) - Fixed a bug when you exit the game with a hot item in hand, reload the game, and wait for the timer to expire, then Vyna will forever think you can't reheat it again. - Fixed some logic issues. - Added some logic tricks. - Reworked the logic levels, see Wiki::Tricks.
Here are 3 new contesters for next month. 👟 Lethal Loadout - You start with all upgrades and you have 20 keys to find. ➿ Looping Lair - All rooms are on the same floor, like Curvy Corridor, but there are holes in the ground connecting to the ceiling, and some items like Grapple and Pins are missing. 🪹 Empty Home - The mice have fled the house, only remain the presents and a ton of treasure chests.
💫 You start on the top floor, in the Entrance, and you can drop down to the Living room, then the Stairs, the Dining Room, and the Kitchen.
❌ You will very soon be unable to climb back up so you will have to warp back to the Entrance room pretty often. Take that into account in your routing!
🖼️ Thanks to Maplestar again for the wondeful painting! ! I love the idea behind it, it's brilliant.
I've got more time to organize races now, who would like to engage in some friendly races sometime in May? Tell me here: Race poll on Discord
Exit door can be in the middle of the house if there is a space between two rooms.
Check counter on the map now displayed on a sticky note.
Seed attempt added when re-attempting the same seed multiple times.
Possible softlock when Polo was in the Workshop fixed.
ShowCaptchaGameReward setting implemented, showing by default the reward on the laboratory screen.
Improved a bit the generation probabilities of Mystery Mansion & Insanity seeds.
Reaching the plane in the baby room with the rocket and cheese jump is now in Advanced logic.
New expert logic tricks added
For the end of this first semester, let's give the losers of the first three months one last chance to be picked.
🤯Portal Palace II - Portals are uncoupled, going back the way you came won't lead to the same room.
👻Ghostly Gathering - All presents, mice and gacha machines are invisible, and of course they're shuffled around.
🔺Pyramidal Pad - The house is shaped like a pyramid, with many rooms at the bottom and a few at the top, and all rooms are shuffled.
🕯️ The whole house is in the dark. Light sources emit light, to help you go through the house.
🐭 Mice are in their starting room, but due to darkness, they may be somewhere else in their room.
🧠 This challenge will test your memory, because you won't be able to easily see all the presents you didn't open.
🔥At least you start with the lighter!
🖼️Thanks Maplestar for the art!
More info on the Wiki
Current challenge painting added on the main screen, next to the monthly challenge button.
StartingUpgradesInPresent setting added.
ForceCameraZoom setting added (not used though).
Illumination setting added.
The Roky Band has been moved to the Living room in Party Apartment.
Each challenge room now sums all of the best challenge times on the easel.
"Continue run" prompt added before showing the monthly challenge whiteboard when a run has been suspended.
The camera won't try to focus on the workshop machine target if the user is using the rocket or grapple.
Microwave and Laundy fast cycles will start earlier if there are only junk items remaining in reachable checks (warning: if you have multiple things to give to a quest giver, only the first reward is taken into account).
Vyna won't point toward junk items unless it's the only type of items currently available in checks.
Bugs
Blowtorch shouldn't be hidden on some treasure charts when the chest is close to the right edge.
Only the first coin given to an out of logic Gacha machine was considered out of logic.
Items that are cooling down will correctly be transformed into the cool item at the correct moment after a save reload.
In rare cases, an additional copy of a shared item (lemonade or tent) was added.
Babyroom dresser doesn't replay the open sound after a save reload.
Fixed some missing logic edges.
Join the Discord to vote for the next challenge!
🔍 Zoomed Rooms - Treasure charts are highly magnified, requiring you to identify even the smallest features to understand where they lead.
💫 Rotated Residence - The floor plan of the house is shifted 90 degrees, but every room stays upright (See screenshot 📢announcements).
🐌 Slow Suite - There are no rocket nor grapple upgrades, think carefully about your next step, to avoid losing time!
🪙 All the presents & quests give coins, only the 3 Gacha machines give useful items.
🗝️ Also, the 35th ball of each machine will contain one of the 3 required keys!
✨ This one is really fun to optimize, it changes the dynamic a lot, be prepared to change how you route your runs.
🖼️ Thanks Wan for the art!
We now have Randomice Wiki! It's still not complete but contains already a lot of info.
Come take a look! You can get more info on Cash Castle over there.
On the Discord server, you can vote for the next challenge! Here are the contendants:
🔦 Dark Den - Lights are out, you don't see a thing except your close surroundings. Mice are randomly placed in their own room.
🔎 Zoomed Rooms - Treasure charts are highly magnified, requiring you to identify even the smallest features to understand where they lead.
💫 Rotated Residence - The floor plan of the house is shifted 90 degrees, but every room stays upright.
Player can rocket out of Vyna's box.
The monthly challenge button opens up the whiteboard to show the challenge details.
Suri will put all the coins in the gacha machine in one go.
The animation for getting an item will speed up over time when getting many items in a row.
Game isn't paused while opening a present or receiving a gacha ball.
Added an advanced logic trick in the garage.
🎉 The new challenge is there! 14 mice, packed in a small 4-rooms apartment.
The rooms are not shuffled, nor are the mice. And you're gonna like the next part: for this party, Fortune Cookies are forbidden! As are treasure charts and coins.
A big thanks to Maples for the painting representing the challenge!
Also, a new format started last week: the weekly async races.
You're given a challenge, a seed, and you have only one run. Then, share your time on this thread with others! Join the Discord to participate!
On the Discord server, you can vote for the next challenge! Here are the contendants:
🪙 Cash Castle - Presents and quests only give coins. All the useful items are in Gacha Machines.
🔺 Pyramidal Pad - The house has a pyramidal shape (floors of width 9, 7, 5 then 3), and rooms are shuffled.
🔦 Dark Den - Lights are out, you don't see a thing except your close surroundings. Mice are randomly placed in their own room.
And with this new version, some new things:
Some NPCs' checks are ignored if they can't be met (such as changing the temperature without access to the boiler).
Challenges can be restarted from the pause menu.
Bathroom step stool is taller to make the triple jump to the bathtub easier.
Pressing the Lighter Button (B) will cancel the grapple.
Player can walk out of the potty chair without jumping.
Generation setting PrioritizeQuests exposed, to tweak how much we want to prioritize picking quests to fulfill.
Controller vibrations while on the rumble are more subtle.
Degree (°) symbol removed when using Kelvin as a temperature unit.
Monthly challenge best time shows only the best unseeded time.
Campaign days can't be replayed until the campaign has been completed.
Miko & Lova individual item icons could sometimes show up instead of the generic icon in Mystery Mansion.
Randomice has been officially verified for the Steam Deck by Valve!
No more boring car trip, having to watch the same uninteresting trees.
No more frustrating dinners filled with Grandpa's outdated political debates.
More bathroom breaks (don't forget to charge the Deck first).
Randomice once again saves the day!
And when you've played enough, join one of the friendly races we organize on the Discord server! They're chill, and full of awesome people.
Bonne Année ~ Happy New Year!
As promised, here's your first 2026 present: A new challenge!
🗼 All rooms are stacked to form a 12-stories tower.
📌 You start on the bottom, with the push pins, and the exit is on the top of the tower.
🗝️ There are 5 locks, but 7 keys are hidden in the tower, so you won't need to open as many checks as usual.
Join the Discord server to vote for the next one. Here are the choices:
🎉 Party Apartment - Most of the mice are in a small 1-stage apartment of 4-5 rooms.
🪙 Cash Castle - Presents and quests only give coins. All the useful items are in Gacha Machines.
👻 Ghostly Gathering - All presents & NPCs are invisible, and of course they're shuffled.
I'd like to organize some races on the Tall Tower and Full House challenges. If you're interested, it'll be organized in the Discord as well.
Alongside that, the 5.1.3 version brings some new things :
2026 monthly challenge page added.
RoomAccessPriority setting implemented, to make the generation algorithm prioritize items which will open new rooms.
Generation algorithm will also be incentivized to use more useful items in the beginning to prevent failed generations.
Paintings for the campaign days are the same as their corresponding challenge.
Shady Shelter gold medal is set to 27' instead of 25'.
Dining buffet lower glass can be destroyed without exploding the small jar at its foot.
Player can drop down from the potty chair and cat bed.
Player can't open the map in space tutorials.
Check counter on the map hidden during laboratory sequences.
Piercing rocket tutorial improved.
Kimo asks the player to join the Discord at the end of the campaign and says that the first bonus challenges are easier than Day 10.
The time it takes for the item icon to reach the item popup paper is constant.
Seed added in campaign result window.
Fixed some missing logic.
And I fixed some bugs:
Polo won't continuously talk to the player when they're standing inside the curtain without a Gourmet Medallion.
Suri's bubble size will be consistent with other NPC's when playing on a modified game scale.
Infinity sign is displayed correctly in the settings
In January 2026, I'm going to release the first Monthly Challenge. And I'm counting on you to vote for what this challenge will be! You've got a few options:
Tall Tower - All rooms are stacked to form a big tower. You start with the Charged Pins.
Portal Palace II - Portals are uncoupled, going back the way you came won't lead to the same room.
Party Apartment - All the mice are in a small 1-stage apartment (Toilet-Bathroom-Kitchen-Living)
Join the Discord to cast your vote!
Aside from that, version 5.1.1 is out!
Some improvements:
Which item to reheat can be selected with the mouse.
Medal times are easier to achieve.
And a lot of fixes:
Polo was invisible in the Stairs bottom right corner.
Logic fixed when Polo was guarding the Toilet's upper right hole.
Some seeds of Day 7 (Pirate Paradise during the campaign) could get the player soft-locked.
Vyna will not point at Miko on day 10 before a certain other event happens.
Fixed some dialogs.
Can't be stuck in the truck while grappling.
It's easier to grapple to the top of the electrical panel in the Workshop.
Game lagged a bit when trying to drop down on a solid platform while using the blowtorch.
Game lagged a bit when burning the dust in the workshop pipe, then leaving.
Fixed a crash when loading the game for the first time on version 5.1.0.2.
Fixed a soft-locked when receiving the kitsch print from the printer at the same time as Homa's password present.
Glyphs won't change while in the pause menu when using the trackpad on the Steam Deck.
Changelog:
Fixed a crash that happens sometimes when a controller is unplugged.
Fixed a rare issue when exiting a room at the same time as a conversation starts.
Fixed a crash when trying to load languages.
Fixed an issue on old computers while trying to store the campaign save at the end of the campaign.
Polo correctly reprimands the player when he enters from the back.
Basement bottle present can't be opened by breaking only the left bottle.
The challenges are correctly unlocked at the end of the campaign.
Chinese language is correctly rendered in white in the end credits.
It's possible to drop down from Vyna's box.
Can use the rocket to leave the litter box.
Min grapple length to shoot halved.
Some other things & stuff
Randomice is participating in the Steam Next Fest!
It’s an opportunity to give the game demo a(nother) look:
30 minutes minimum of gameplay for a first run
8 powers to find and try out!
4 house rooms to explore from top to bottom
6 wacky characters to meet and help
5 Steam achievements to start collecting, including 3 demo-exclusives!
With the challenges, you can replay the second day of the demo with another random object distribution. Will you be able to beat this second day in less than 7 minutes?
You’re a content creator and you want to try out Randomice? I’ve created a 90-minute-long extended version of the demo just for you!
To access it, contact my publisher Abiding Bridge directly at
There’s a Randomice Discord server 🐭 There’s several of you challenging each other in the game, it’s the perfect place to give me your feedback, discuss your runs or bring up bugs.
For every 1000 wishlists, I’ll do a prize draw among server members to give a complete game key, so don’t forget to join us and add Randomice to your wishlist!
I’m very happy to announce that Randomice is also available in Spanish and Chinese!
About
This page aggregates Steam news feeds, patch notes, and developer announcements for Randomice, sourced from official Steam community posts.
Major updates, balance changes, and seasonal events often correlate with player-count spikes — cross-reference announcements here with the live charts on the main Randomice statistics page.
Articles link back to Steam for full changelogs. SteamScope refreshes news entries as new posts are published to the game's Steam hub.
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