Ratatan News

[h2]Bug Fixes[/h2]

• [p]Fixed an issue where save data could become corrupted and fail to load properly. [/p]
  • [p]This occurred when the amount of data being saved grew too large after extended gameplay sessions, so we have increased the upper limit for the amount of data that can be saved.[/p]

[p]We sincerely apologize for the inconvenience caused to all players.[/p][p]We are also continuing to investigate an issue where save data deemed corrupted could be automatically deleted upon exiting the application. A fix for this issue is planned soon.[/p][p]If your save data has already been lost, please follow the steps below to attempt recovery from Steam Cloud.[/p][p][/p][h3]Restoring Save Data from Steam Cloud[/h3]

• [p]Close the game.[/p]
• [p]Log into Steam and access “store.steampowered.com/account/remotestorage”.[/p]

• [p]From the list, select “View Files” for Ratatan and download the following files:[/p]
  • [p]RatataArts/Ratatan/xxxx/Ratatan1.rttn (if saved in slot 1)[/p]
  • [p]RatataArts/Ratatan/xxxx/Ratatan2.rttn (if saved in slot 2)[/p]
  • [p]RatataArts/Ratatan/xxxx/Ratatan3.rttn (if saved in slot 3)[/p]
  • [p]RatataArts/Ratatan/xxxx/RatatanSys.rttn[/p]
• [p]
  If the downloaded files contain extra characters in their names, rename them as follows:[/p]
  • [p]Ratatan1.rttn[/p]
  • [p]Ratatan2.rttn[/p]
  • [p]Ratatan3.rttn[/p]
  • [p]RatatanSys.rttn[/p]
• [p]Open Ratatan’s save data folder. It is usually located at:[/p]
  • [p]“C:\\Users\\(username)\\AppData\\LocalLow\\RatataArts\\Ratatan”.[/p]
• [p]Inside the folder, open the subfolder with the most recent modification date and a numeric name.[/p]
• [p]Move all downloaded save files into that folder.[/p]
  • [p] If data already exists, overwrite it.[/p]
• [p]Launch the game and check if your save data has been restored.[/p]
  • [p]If it has not been restored, try the steps again from the beginning or attempt using a different folder.[/p]

[p][dynamiclink][/dynamiclink][/p][p][/p][h2]Highlights[/h2][p]Super Fever Tech[/p][p]Ratatan units can now unleash the Super Fever Tech.[/p]

• [p]Unlock it from the Quest Board.[/p]
• [p]When the Tension Gauge is full, input the specified Rhythm Command to consume all Tension and activate.[/p]

[p]Per-unit Super Fever Techs[/p]

• [p]Harigittan — “Hoglet Hold”[/p]
• [p]Builds a tower that blocks enemy movement and attacks. You can also stand on it as a platform.[/p]
• [p]Nyandola — “Mew Mew Mania”[/p]
• [p]For a set time, increases Move Speed and Attack Power of Ratatan and Cobun within range.[/p]
• [p]Mimizukyun — “Frosty Feathers”[/p]
• [p]Fires multiple ice arrows forward, dealing damage and applying Freeze.[/p]
• [p]Keroronpa — “Bop & Drop”[/p]
• [p]Drops multiple bombs from above, damaging a wide area.[/p]
• [p]Pyokorappa — “Sassy Symphony”[/p]
• [p]Fires multiple musical notes in an arc that explode on hit.[/p]
• [p]Kamonelo — “Cuddle Canopy”[/p]
• [p]Places a barrier that nullifies projectiles and grants a damage-taken reduction buff to allies in range.[/p]
• [p]Mashuma — “Fungal Fallout”[/p]
• [p]Spawns a giant mushroom that scatters spores, creating a damage-over-time area.[/p]
• [p]Buttonda — “Piggy Palisade”[/p]
• [p]Expands a self-centered barrier that nullifies projectiles and grants a Critical Rate up buff to allies in range.[/p]

[p]World Event: Treasure Chance[/p][p]Powerful foes can trigger treasure chests to appear, yielding more rewards.[/p][p]Accessories for Cobun[/p]

• [p]You can now equip Accessories on Cobun from the Squad/Formation screen.[/p]
• [p]Accessories change a Cobun appearance and grant stat-up effects.[/p]
• [p]Obtainable as enemy drops, etc.[/p]

[p]Random Match: Room List[/p][p]A room list is now displayed in Random Match. In a future update, you’ll be able to join a specified room.[/p][p]Save-Data Backup[/p][p]If the primary save becomes corrupted, the game will automatically load from a backup.[/p][p][/p][h2]Battle[/h2][h3]Balance Adjustments[/h3]

• [p]Adjusted the damage formula.[/p]
• [p]Fixed an issue where guarding under specific conditions could reduce damage to 1.[/p]
• [p]Updated the formula in line with the Super Fever Tech introduction.[/p]
• [p]Adjusted the size of telegraph markers shown before enemy attacks to better match actual hitboxes, making dodges easier to read.[/p]
• [p]In high-difficulty battle phases, increased spacing between enemies to reduce dense clustering.[/p]
• [p]Adjusted projectile hitboxes on ranged enemies to make them easier to avoid.[/p]

[p]Enemy/Boss tweaks[/p]

• [p]World 1 — Bonbobon[/p]
• [p]World 3 — Lord Rosham Bo[/p]
• [p]World 4 — Chillwarden[/p]
• [p]Subspecies Boss — Tornado-Wagoon[/p]
• [p]World 1 — The Jolly Hermit: Adjusted rear-side hurtbox so Cobun attacks don’t whiff.[/p]
• [p]World 3 — Rock’n Golem / Full-Meta Golem: Attacks now align with the beat.[/p]
• [p]World 4 — Rock'n'yeti: Attacks now align with the beat.[/p]
• [p]World 5 — Portageist: Lowered HP, reduced projectile speed, and adjusted move/attack intervals.[/p]
• [p]World 5 — Boneless Bear: Lowered HP.[/p]

[p]Multiplayer[/p]

• [p]Welcome Mode is now disabled in Multiplayer.[/p]
• [p]After deploying, it can no longer be toggled ON from Options.[/p]
• [p]Mixing players with different Welcome Mode settings caused unintended balance, so it is disabled during Multiplayer.[/p]

[p]Economy[/p]

• [p]Divine Draw no longer dispenses Tokens.[/p]
• [p]Token payout vs. draw cost allowed more pulls than intended.[/p]
• [p]It also led to more shop upgrades than intended. To restore balance, Tokens will not be dispensed from Divine Draw.[/p]

[h3]Ratakaruta[/h3]

• [p]You can now Reroll Ratakaruta.[/p]
• [p]Pay Tokens to change the obtainable Ratakaruta card.[/p]
• [p]Token cost increases with successive rerolls.[/p]

[p]Element: Fire[/p]

• [p]Adjusted the conditions/effects of low-HP trigger cards to better fit current balance.[/p]
• [p]Increased card effects that boost Normal Attack and Hustle Tech.[/p]
• [p]Big Booms: Increased explosion damage.[/p]
• [p]Burning Bravery (multiplier up): 25% / 50% / 75% / 100% → 30% / 60% / 90% / 120%.[/p]
• [p]Burning Boost (condition relaxed): HP ≤30% → HP ≤50%.[/p]
• [p]Burning Blast+ / Hustle Blast+ (power up):[/p]
• [p]Before: 15%+3% / 25%+6% / 35%+9% / 45%+12%[/p]
• [p]After: 20%+4% / 30%+8% / 40%+12% / 50%+16%[/p]

[p]Element: Poison[/p]

• [p]To make damage from Poison feel more impactful, increased card effects that boost Normal Attack and Hustle Tech.[/p]
• [p]Status Ailment: Poison — Duration increased; damage increased (fixed-value damage).[/p]
• [p]Duration: 6s → 18s[/p]
• [p]DPS: 16/20/24/32 → 20/24/32/40[/p]
• [p]Total: 96/120/144/192 → 360/432/576/720[/p]
• [p]Toxic Boost — When attacking a poisoned enemy, 20% chance to deal additional damage. 75%/100% → 150%/200%.[/p]
• [p]Poison Pinch — Poison tick frequency becomes faster. 20%/25%/33%/50% → 25%/33%/50%/75%.[/p]

[h2]Out-of-Game[/h2]

• [p]Ratatan Dock: Added new upgrades related to Just Input.[/p]
• [p]Increased Tension Gauge gain on Just Input.[/p]
• [p]Increased MP recovery on Just Input.[/p]
• [p]RataPort: Extended demo line display times.[/p]
• [p]Oath Level now increases rewards:[/p]
• [p]• Lv1–3: In addition to normal drops, extra drops are rolled.[/p]
• [p]• Lv4+: Plus boss-exclusive drops are rolled.[/p]

[h2]UI/UX[/h2]

• [p]Boss HP Bar now displays localized names.[/p]
• [p]When resuming from a Suspend Save, you can choose to resume or discard and return to base.[/p][p][/p]

• [p]Weapon “Stonewall Spear” now drops at the correct rarity.[/p]
• [p]Fixed a crash when deploying a squad with 18 specific Cobun.[/p]
• [p]Fixed an issue where if the owner was forcibly disconnected in Multiplayer, participants couldn’t operate.[/p]
• [p]Fixed barrier value not carrying over after resuming from a Suspend Save.[/p]
• [p]Fixed unintended load caused by rapidly switching screens in Craft.[/p]
• [p]Fixed overlapping control guides in certain screens.[/p]
• [p]Fixed rounding issues causing damage/heal to be truncated.[/p]
• [p]Fixed a tutorial softlock when repeatedly entering commands other than those specified.[/p]
• [p]Fixed Decorune names showing unintentionally when switching Cobun in the Formation screen.[/p]
• [p]Fixed a Craft issue where, if multiple presets existed, pressing Initial Equipment did not reset certain presets.[/p]
• [p]Fixed an issue where Oath items were sometimes not granted after clearing a world.[/p]
• [p]Fixed Ratatan Dock item “clean block” sometimes not functioning correctly.[/p]
• [p]Fixed Poison Elemental Force sometimes not functioning.[/p]
• [p]Fixed “GET” being displayed on Ratakaruta pickup screens after resume, even when a swap occurs.[/p]
• [p]Fixed certain buffs lingering after Cobun death.[/p]
• [p]Fixed barriers exceeding their maximum.[/p]
• [p]Fixed an issue where certain Ratakaruta displayed incorrect effect values in their descriptions.[/p]
• [p]Fixed an issue where rhythm commands could sometimes be performed after clearing a wave.[/p]

[h2]Known Issues[/h2]

• [p]Multiplayer desync may occur between players.[/p]
• [p]After switching selection in Multiplayer, some players’ doors may not open, blocking progress.[/p]
• [p]Barrier values may not carry over after leaving via Suspend Save and resuming.[/p]
• [p]Boss Defeat SFX may play after resuming from a Suspend Save.[/p]
• [p]When obtaining Ratakaruta after resuming from a Suspend Save, “Swap” may be displayed as “Get.”[/p]
• [p]Some pop-up help images still show older in-game art.[/p]
• [p]The control guide at the bottom of the screen can overlap with another screen’s guide.[/p]
• [p]With a barrier active, obtaining Max HP Up may increase remaining barrier.[/p]
• [p]Crashes may occur when accessing Freeze-related buffs during play.[/p]
• [p]In Multiplayer, joining players may start the next phase in front of the door.[/p]
• [p]Repeated use of the Altar may cause rendering issues.[/p]
• [p]An error may occur if the RataPort is left idle for an extended period.[/p]
• [p]“Son Jammer” clones may move through doors.[/p]
• [p]Entering specific Rhythm Commands may occasionally cause input to lock.[/p]
• [p]Opening the Info screen at certain timings may make it unclosable.[/p]
• [p]Effects of specific Fire-element Ratakaruta may fail to trigger.[/p]
• [p]Battles may fail to end after defeating the final enemy with Ratakaruta “Big Booms.”[/p]
• [p]After resuming from a long pause in the tutorial, bosses may remain idle.[/p]
• [p]Cobun may continue guarding unintentionally.[/p]
• [p]Upon Cobun death, another Cobun’s appearance may be applied.[/p]
• [p]Cobun may leave the follow state and stop progressing when using an Altar.[/p]
• [p]Camera position may be offset at the start of a stage.[/p]
• [p]Certain Ratakaruta effects may double when using Suspend Save.[/p]
• [p]Boss Defeat SFX may play after resuming from a Suspend Save.[/p]
• [p]Text in Altar UI may be clipped.[/p]
• [p]RataAbility and Decorune effects may not apply to Shock caused by Chain Lightning.[/p]
• [p]Key Config conflicts may make input unusable.[/p]
• [p]Overlapping screens in RataPort events may prevent closing the affected screen.[/p]
• [p]Dropped items may fall off-screen and disappear.[/p]
• [p]Window size may revert to default after changing and saving Options.[/p]
• [p]Items placed in the Interval may change after resuming from a Suspend Save.[/p]

Developed by Ratata Arts and published by Game Source Entertainment, the Rhythm × Roguelike action game Ratatan has surpassed 100,000 cumulative sales worldwide during its Early Access period!
We would like to express our heartfelt gratitude for all the passionate support from players around the globe.

Since its Early Access launch on September 19, 2025, on Steam, the game has been praised internationally for its unique fusion of rhythm-based combat and its cast of colorful, charming characters.



[h2]■ Major Update Scheduled for October 30 (Thursday) at 12:00 PM JST![/h2]
This update, titled the “October Update,” follows the roadmap previously shared with players and will introduce various new features and improvements, including highly anticipated special skills exclusive to each Ratatan.

[previewyoutube][/previewyoutube]

[h2]Update Contents (Planned)[/h2]

[h3]SUPER FEVER Skill[/h3]
Unique special skills for each Ratatan make their debut!
Build up your FEVER gauge and unleash powerful attacks—team coordination in multiplayer will be key.



[h3]Cobun Accessory Equipment[/h3]
Customize your favorite Cobuns with accessories like ribbons and hats.
Express your style and enhance the fun through visual customization.



[h3]New Random Events (Treasure Chest Rooms)[/h3]
New opportunities to discover treasure appear during your journey.
Defeat challenging enemies to earn valuable loot and generous rewards!



[h3]Random Matching Improvements[/h3]
Improved matchmaking UI now displays active sessions.
This is the first step in a series of updates aimed at creating a smoother multiplayer experience.



[h3]Ratakaruta: New Reroll Function[/h3]
A new reroll feature allows for greater freedom in card selection, enhancing deck-building strategy.



[h3]Various Balance Adjustments and Bug Fixes[/h3]

[h2]Looking Ahead[/h2]
We will continue to make improvements and updates based on everyone’s valuable feedback.
Your voices shape the future of Ratatan—thank you for your continued support!

[h3]Reference Links[/h3]
Steam Store:
https://store.steampowered.com/app/2949320/Ratatan/

Roadmap:
https://store.steampowered.com/news/app/2949320/view/706624027566801323

Early Access FAQ:
https://store.steampowered.com/news/app/2949320/view/706624027566801483

[p][/p][p]We have corrected the supported language display on the Steam store page from “Spanish – Spain” to “Spanish – Latin America.”
This change was made to resolve a discrepancy between the language shown on the store page and the actual language displayed in the game.[/p][p][/p][p]We sincerely apologize for any inconvenience caused by this labeling error.
Thank you for your continued support for RATATAN.[/p][p][/p]

• [p]For enhanced security, we have rebuilt the application using a patched version of Unity.[/p]
  • [p]This update addresses the CVE-2025-59489 vulnerability.
    
    [/p]
• [p]Fixed an issue where the number of available deployments increased after resuming from a suspended save.[/p]