- Update 1.18 - 20 August 2026
Hello Rattys!An update is now available for Rat Climber, if you do not see it, please restart your steam client.Redwood RidgeA new zone, Redwood Ridge, has been added to Dream World! Take a peaceful stroll through a gigantic redwood forest that was once the site of a battle between giants (or at least it looks that way from a rat's perspective).This is the 6th zone in Dream World, out of 7 (the final one will be coming in the near future, get ready!) Redwood Ridge has it's share of challenges, but it's less difficult in terms of precision platforming compared to other zones, and is more focused on exploration and routing......so speedrunners who enjoy optimal pathing and clean routes, get ready to shine! Cheese improvementAdded particles for eating cheese, to improve the lore experience.Lush Ruins (IL) Speedrunning UnlockedFor those who participate in Individual Level speedrunning of sp…
- Update 1.17 - 23 July 2026
Hello Rattys!An update is now available for Rat Climber, if you do not see it, please restart your steam client.MODESMain menus have been added for Ratty's World and Dream World. They will show your customized rat. Choose from 3 modes: Beginner Mode - For new players learning the game. Your location can be saved. Teleport back there, or to any unlocked world checkpoints at any time. The achievements for reaching the end of each world (Climbing Rat and Dream Rat) are disabled in this mode.Normal Mode - The normal Rat Climber experience. Location saving and checkpoints disabled. You will always begin at the very start. All achievements enabled!Speedrun Mode - For speedrunners or practicing. Level select and superjump unlocked. Checkpoint menu unlocked. All achievements disabled! Secret cheese disabled!RAT RACETRACKAdded a racetrack to lush ruins and a buffed version of the blue cheese cal…
- Hotfix July 4th, 2026 - 4 July 2026
Hello Rattys! A new update is now available for Rat Climber, if you do not see it, please restart your steam client. This patch should fix the movement issues some people were having. I did not have this issue all throughout my testing phase, so I wasn't aware of it, or what is causing it, but I greatly suspect it's a combination of custom movement code I added to allow new movement keybinds, combined with a framerate option that was set within Unreal itself To fix this, I have completely removed the added movement code, so unfortunately I will not be able to support custom movement keybinds at this time. I also added framerate limiter dropdown menu in the graphics submenu where you can cap the game's FPS to 30, 60, 90, 144, 240, or 0 (which will be uncapped) If you are still experiencing issues, or notice that your game's performance is suddenly worse, I highly suggest trying out these…
- Update 1.16 - 3 July 2026
Hello Rattys!An update is now available for Rat Climber, if you do not see it, please restart your steam client.Lush RuinsA new zone, Lush Ruins, has been added to the end of Dream World, bringing it to 5 total zones so far!There is a brand new power up here, the Blue Cheese. Collect it and you will be able to run FAST. This will allow you to ramp off of ramps and reach far-away sections of the ruins. Don't worry if you accidentally miss your mark, this is a special zone - there is fall protection for the first time in Rat Climber. If you fall below the zone while in a speed boosted state, you will automatically restart at the beginning of the zone (but ONLY if you are in the super speed mode. A regular fall will still send you down into the abyss).Please note, also, that holding dash or safety walk while in a speed boost state will not do anything, so you don't have to worry, every spe…
- Update 1.15 - 20 May 2026
Hello Rattys! An update is now available for Rat Climber, if you do not see it, please restart your steam client. Signposts Several new signposts have been added around Ratty's world, left by previous rat explorers. Be sure to read them, they give very useful advice and tips! Quality of Life Ratty's customization is now saved between play sessions + between swapping from Ratty's World to Dream World. The customization UI and welcome message also only show up automatically the very first time you boot up the game. Loading screen graphic has been added when swapping between worlds. The portal to Dream World has been moved closer to the starting spot of the game. Many Rattys have never even seen it, and were surprised when randomly stumbling upon it in the back corner. It is now labeled as "Dream World (Bonus levels)" Bugfixes The toy trains in Playground level will now reset back to start…
- Update 1.14 - 3 September 2025
Hello Rattys! An update is now available for Rat Climber, if you do not see it, please restart your steam client. Progress and Wiped Saves I'm very humbly sorry, Rattys. Some players' cheese finding progress and settings have been reset with the launch of Dream World patch 1.13. The progress cannot be recovered in these instances because the save file had been overwritten by technical complications in going from a single world game to multiple worlds, and having to change things to allow the game to be packaged. Please accept my apology and be assured this shall not happen again!! Just in case, however, if you want to back up save files, they are located in (drive)>Users>(username)>AppData>Local>RatClimber>Saved>SaveGames and its the file called 1.sav Dream World - Superjump will now be unlocked in Dream World if you have it unlocked in Ratty's World. - Very important, secret text added…
- Hotfix Aug. 28 II - 28 August 2025
This fix will save your record of beating the Dream World levels, even if for some reason the achievement doesn't unlock for you, it will still be recorded and I can try to address it further when possible
- Hotfix Aug. 28th - 28 August 2025
The restart at specific levels function should now work properly.
- Update 1.13 - Dream World - 28 August 2025
Hello Rattys!An update is now available for Rat Climber, if you do not see it, please restart your steam client.New world: Dream WorldThere is a new world for you to explore, containing four new zones. You can find the portal to Dream World in the barn behind the spot where you start the game. Dream world has its own level timers, and also its own rules. Superjump will be disabled in this world, so be careful with each step! You will be able to unlock restarting at specific levels just like in the base game, but you need to reach the end of the final zone to unlock this feature.Reaching the end of Dream World will give you a new achievement. Be on the lookout for additional achievements soon.In the future, there will be more levels added to Dream World, so look forward to more!Squeak mode enabledRatty can now squeak on demand with Left Mouse Button or Right Trigger. Has science gone too…
- Massive Anniversary Discount! - 1 August 2025
Happy birthday, Rat Climber! I released the game in August of 2024 and to celebrate the anniversary, I have given it the highest discount Steam will allow, for the next week.I hope every one has fun climbing and I hope you look forward to the DLC levels coming in the next few months!
- Rat Climber Demo Updated to 1.12 - 22 July 2025
Hello, Rattys! The demo for the game has now been updated to 1.12 with all of the features and zone updates from the live game. Good luck climbing!
- Update 1.12 - 22 July 2025
Hello Rattys! An update is now available for Rat Climber, if you do not see it, please restart your steam client. This is a small patch focused on bugs and polishing. - Sparkles customization will now work properly and no longer become permanent or stack with other sparkles. - Fixed a bug where you could move while customization menu was open, making it hard to close. - Right trigger on controllers will now work properly in Cheese Heaven. - Fixed a bug where Seaside Village ambience would always restart towards the end of the zone. - Smoothed out many faceted faces on Seaside and Egypt buildings - Fixed missing textures in an Egypt building - Added helper golden planks to the very start of Shadow Castle to help players find the beginning path.
- Update 1.11 - 14 July 2025
Hello Rattys! An update is now available for Rat Climber, if you do not see it, please restart your steam client. Zone Length Timers The Individual Levels UI will now also display the segment length for each zone (in yellow text) in addition to the standard overall split time (in blue) Ex: If you beat zone one in 10 seconds, then you beat zone two in 30 seconds, your (blue) split time on zone two will be 30 seconds since that is the overall time since you began your run, and your (yellow) segment length for zone two will be 20 seconds since that is only the time you spent in that specific zone. This is useful if you want to submit a video to a speedrun website for individual level, but the video contains multiple zones. These new timers save the user/moderator from having to manually subtract times. NOTE: The game uses centiseconds to calculate all times but it is not perfect so there w…
- Quick Hotfix July 10th - 10 July 2025
Small bugfix! Don't worry about it!!
- Update 1.10 - 8 July 2025
Hello Rattys! An update is now available for Rat Climber, if you do not see it, please restart your steam client. Customize Ratty's Appearance You will find new customization and appearance options in the color choose menu such as options to turn your fur on/off, make your fur shiny or normal, make yourself glowing and emit faint light, and leave a trail of sparkles as you travel! You can also now access this Ratty appearance menu at any time by clicking the new button in the options menu. First Person Mode If you want to see the world from a new point of view, simply press T on keyboards or R3 (the right thumbstick pushed in button) on controllers to swap between 3rd and 1st rat-view More Path Polishing As usual, I have added a small handful of new Planks-of-Destiny (tm) to the game to help you in your climb. You can find them: - in the middle of Seaside Village above the wooden arrow…
- Update 1.09 - 1 July 2025
Hello Rattys! An update is now available for Rat Climber, if you do not see it, please restart your steam client. New Rat Colors You can now make Ratty purple, green, blue, or golden! Cheese Heaven Improvements You can now eat as much cheese as you want once you reach cheese heaven. Feast away ratty, you will never run out! The invisible walls are now removed as well, if you wish to skydive after reaching the end of the game. Path Polishing Another round of small fixes to make the pathing just a little bit smoother. You will find tiny tweaks to the windmill, a higher floor inside the minecarts (you no longer need to jump onto the metal bricks), more ground near the first cage trio in Swamp to save from a common fall that would send ratty to the very start of game, a few new planks in Egypt, and a quicker "rock garden" in Mystic Towers (just after the second set of floating wagon wheels)…
- Hotfix June 10th - 10 June 2025
This is a quick hotfix patch that addresses two bugs: - Users should now be able to unlock the "Skydiving Ratty" achievement now. It has also been changed so you only need to fall for 5 seconds instead of 10 - Fixed a bug that would sometimes make the safety walk get stuck and persist after letting go of the key
- Update 1.08 - 9 June 2025
Hello Rattys! An update is now available for Rat Climber, if you do not see it, please restart your steam client. More speedrunning options - You can now choose a specific zone to restart in each time, instead of the first zone. This feature is only unlocked once you beat the game for the first time and get the "Climbing Rat" achievement. - Superjump can be toggled on or off, as using it during a speedrun invalidates the run so this will prevent you from accidentally using it. - Removed restart warning text to give you a faster restart. Improved path - Another round of path polishing (mostly in the first zone) to remove small frustrating obstacles that overly-slow down the momentum of gameplay, fixing of various graphical things, and addition of more "guide planks" like usual to make progression less confusing in spots. - I have also added a recovery path to the right of the windmill if…
- June 4 Hotfix - 4 June 2025
Quick fix to a UI issue
- Update 1.07 - 4 June 2025
Hello Rattys! An update is now available for Rat Climber, if you do not see it, please restart your steam client. Speedrun features are now added into the game! - In options menu, click "speedrun" button and you can toggle on/off the overall timer, and automatic time splits for when you reach each new zone - The overall timer will remain at zero until ratty moves - Individual level split times are automatically recorded upon transitioning to each new zone (the spots where the ambience track and lighting changes) - The overall timer and final zone will end their timer once you reach cheese heaven and lose control over Ratty - All timers will reset upon choosing restart from menu Improved restart - Ratty will now always spawn at the exact same spot after restarting, facing the exact same way, and with the camera reset. - Restarting will reset the three minecarts in Crystal Mines back to t…
