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One Boss One Fight — patch notes and updates

Stored observation / content update:

Dated developer announcements recorded from Steam. Open the source for the complete update.

UpdateDateExcerpt / source
2.000 fights already done!2026-05-02Version 2.0 - Thank you very much!Two months ago, I launch the biggest project I have ever work on! And now we are crossing 2,000 battles fought in the arena. I couldn't thank you enough!I've also noticed a lot of people found the earlier fights a bit too hard, so I've tuned down (aggressively the first 3 bosses, don't worry there is still plenty of challenge ; and I'm not even talking about hard mode!)Patch 2.5.2MainIncrease enrage timer for all Hard Mode bosses to 16min (Basically when the Executioner spawns)Lower the HP of the Slime Wall in hard mode for Warden DolmarrLower the HP of Prince Marakias normal mode by 60% and now he only has o
Small Fixes and thank you!2026-04-04Version 2.0 - Thank you very much!It’s already been a month since One Boss One Fight v2.0 has released!More than 1,000 battles have been fought! I couldn’t thank you enough.Here is the first patch based on your feedback!Patch 2.5.1MainAdded new Discord / Twitch icons to the options menuBug FixThe gathering plant sound kept bugging out even after gathering was completed; it has been removedVeilgates (portal teleport spell) is now constrained to the arena (same as the teleport Stormstep!)Fixed Benedictions with 8 QTE keys not spawningFixed a bug where, in the Overseer fight, the quest objective → Complete X Skull Event would not advanceFixed a
Version 2.0 - The Massive Update Is Live!2026-03-06Version 2.0 - The Massive Update Is Live!After one year of development, Version 2.0 of One Boss One Fight is finally here!This is the biggest update the game has ever received, bringing new bosses, exploration zones, a redesigned progression system, and major technical improvements.If you played the original version, this update transforms the experience.👑 6 Bosses to DefeatThe original game had one boss and one arena. Version 2 now features:6 unique bosses6 arenas6 large exploration zones with a new exploration systemand more challenges...!Each boss introduces new mechanics and challenges to overcome.⚙️ Gameplay ImprovementsThis update rewo
Try out the new version!2025-10-31One Boss One Fight \ was released in November last year, and after some amazing feedback, I could see it becoming even better. So I decided to spend some time improving it. But after a few weeks of working on multiple things, I realized I could really step up the game!So I spent most of my time this year rebuilding every system, visual, and bit of game feel to create a truly full and complete multiple-boss-fight experience!The game has now reached a fully playable, somewhat balanced stage. Not all the content is available yet, but there’s more than enough to have a lot of fun!I’m looking for people who would like to help me test the game on m
Future Content Update!2025-02-19Thank You for an Incredible Launch! BUG NOTICE : If you encounter annoying bugs either solo or in the multiplayer don't hesitate to jump on the discord. My goal is to fix them as soon as possible. So having your logs files can really help me improve the experience! Thank you guys! Hello everyone! A quick update on the next big free update, it’s coming as soon as possible! I'm working as fast as I can, but I’ve been adding more than I originally planned, which is why it’s taking a bit longer. Here’s what’s changing in a few words. Right now, when you defeat a MiniBoss, a Benediction Stone drops from the sky. That’s going away! Instead, to unlo
Thank you & Future Content Update!2024-12-23Thank You for an Incredible Launch! BUG NOTICE : If you encounter annoying bugs either solo or in the multiplayer don't hesitate to jump on the discord. My goal is to fix them as soon as possible. So having your logs files can really help me improve the experience! Thank you guys! Hello everyone! I just wanted to take a moment and say a MASSIVE THANK YOU to all of you who have bought my game. The fact that so many of you were able to defeat Death has been incredible. Being a solo dev, your support is everything for me, and it makes me want to create even more! Speaking of more content! I’m actively working on the first big free content update
Release Patch 11!2024-12-07Release Patch 11 - The Blood Patch! Main You can now show all the non 16:9 / 16:10 resolutions in the Graphic menu The Portal with the colored ball Event now uses 3 colors in Normal Mode (RGB) and 4 colors in HM (RGBY). The time to switch to another color is 4 sec in NM and 3 sec in HM Added a new AoE pattern Killing a creature generate a blood explosion! In the Fight Summary, you can see what killed you Benedictions Balder Rock : Buff the spawn rate at early levels and nerf the spawn rate and late levels Skill Fear improve duration from Arrow Volley nerfed from 5 sec per upgrade to 1 sec Thor’s Power has a new icon, no more black and white c
Release Patch 10!2024-12-02Release Patch 10 ! Main Going to the next phase now also kills all destructable New filter in the Constellation Panel to be able to select star with a combination of passives (AND / OR slider) Now indicate in the Star tooltip the number of reroll / upgrade left (if you have unlock the improve tab) Destroying one skull now stun the boss for 1 sec instead of 2 The boss now starts gaining his invulnerability shield before teleporting to the center for either the Skull Event or the Invasion. This change and the previous one make the boss more reactive to the players actions Leaderboards Leaderboard HM fixed! You can now appear in it! You can now
Release Patch 9!2024-11-30Release Patch 9 ! Main When you proc your death save it is now clearly indicated above the player’s head The Timer now stops when the boss is dead (only for local history, the Leaderboard always received the exact timing) Rebalancing of the number of kills needed to upgrade a Benediction (when starting with one) Bleeding now deals damage in % (2% for Normal Mode, 5% for HardMode) Boss damage reduction is now capped at 90% In HardMode every mini bosses now gives a 7.5% damage reduction instead of 10% In HardMode, rebalance the toughness gained by the boss per phase P1 : 20 » 15 P2 : 25 » 20 P3 : 30 » 25 Bug Fixes The tree in P3 that prevented
Release Patch 8!2024-11-28Release Patch 8 ! Main Creatures now spawn around the boss and not the player A lot of Event related damage are now player’s health % based and unavoidable (no more cheating!) You now need to truly perfectly accomplish an event before receiving the achievement for it The boss now talks… You can now surrender during the fight via the menu Resetting the fight now despawn all the loot (you should have gathered it before… or buy the auto loot) When the mini bosses are auto killed by the boss launching a Skull Event, they no longer drop Benediction Stones For every mini boss alive, Death gains a buff protecting it from damage Skill To compensate f
Demo Patch 7!2024-11-13Demo Patch 7 ! Main On the Character Panel, you can now join a Viking Clan to gain a small buff New loading screen after the game logo Creatures are automatically killed when a Skull Event start Creatures now can’t spawn during a Skull Event Stars forging price increase by x3 Cost of unlocking forging and improving stars reduce from 300 to 200 stardust. Skull Events Improve the skull event where multiple towers are aiming at you (the laser stops as soon as you kill the tower, you can traverse the tower as soon as you kill it) Lower the damage of the rotating electrical pillars The boss now takes 50% less damage from benedictions Others Added
Demo Patch 6!2024-10-31Demo Patch 6 ! Main Upgrade to Unity 6 LTS Sounds added to every creatures (walk & attack) Sounds added to benedictions Ambience sounds added to multiples events and places Revamp of the HardMode UI (disabled for the demo) Skull Events Electricity damage from the collect the skulls event has been lowered from 100 to 70 Electricity damage from the linked towers event has been lowered from 400 per tower to 150 In the Skull Event “the Floor is Lava” (where the player has to go above ground on a fragile set of tiles to avoid lava), the tile pattern is now always static. The harder versions will only appear in hard mode! Benedictions Lower the siz
Tripling Wishlists During Steam Fest2024-10-241,500 Wishlists Reached! Hey everyone, I’m thrilled to share some incredible news! During the recent Steam Fest, One Boss One Fight saw a massive boost in popularity, tripling the wishlists from 500 to over 1500 in just one week! 🎉 The response has been amazing, with around 90% of players who tried the demo choosing to wishlist the game. I love to see the excitement around my crazy one Boss battle game! This project is the culmination of 8 months of hard work by just me, so seeing such enthusiasm is mind blowing. If you haven’t had the chance to check out the demo yet, now’s the perfect time to dive in and experience the thrill for yourself.
1.000 Wishlists!2024-10-161,000 Wishlists Reached! Hey everyone! Wow! Just two weeks after hitting 500 wishlists, thanks to the excitement around Steam Fest, we’ve officially crossed the 1,000 wishlist mark! 🎉 A huge thank you to the 85% of you who played the demo and wishlisted the game, it’s a massive reward for all the hard work I’ve put into this project. Seeing so many of you enjoy it means the world to me! We’re right on track for a late November launch, and I’ve just finished designing the hard mode, brace yourselves, it’s going to be a challenge! 💀 If you haven’t yet, now’s the perfect time to check out the demo and don’t forget to wishlist the game! Every w
Demo Patch 5!2024-10-06Demo Patch 5 ! Lower the damage from 400 to 250 when failing to find the rune in the Wheel Of Fortune event Added a screenshake when failing to match the rune in the Wheel Of Fortune event A new visible neon Timer now appear in different event (like the Wheel Of Fortune), displaying the time needed to solve the situation Permanent Frost, Bleed, Confusion and Stun telegraphs will now not appear near the center Fixed a rare bug when the player dies during a Skull Event Added an announcer saying funny lines when leveling up (with an option to disable it) Improve the visual of all the Scythe’s invocations from Death Added particle effects to Deat
500 Wishlists!2024-09-30Over 500 Wishlists ! Hey everyone! We’ve hit an incredible milestone, over 🔥 500 wishlists 🔥 in just one month since the demo launched, with nearly 1,000 players jumping in to try it out! Your feedback has been amazing, and it’s helped me improve the demo while making great progress on the final game. A huge thank you to each of you for the support! Get ready, because in just a few weeks, an even bigger and more exciting challenge is coming your way. If you haven’t already, now’s the perfect time to check out the demo and don’t forget to wishlist the game! Every click helps more than you know! Happy gaming, and if you want to stay in the lo
The Demo is out!2024-08-18Exciting News: The One Boss One Fight Demo Is Out Today! Hey everyone! The wait is finally over! The One Boss One Fight demo is officially out today! 🎉 I know it took a little longer than expected, but the extra time allowed me to add a very exciting new feature that I think you’ll love. I won't spoil it so just dive in and discover it for yourself while you face Death! Thank you for your patience and support. I can't wait to hear what you think. Get ready for an epic battle! Don't forget to Wishlist the game and join the Discord! Happy gaming, Benjamin
Demo Coming Mid-July!2024-06-26Exciting News: One Boss One Fight Demo Coming Mid-July! Hey everyone! I have some fantastic news to share with you all. After weeks of hard work and dedication, I am thrilled to announce that a demo for One Boss One Fight will be available in mid-July! This demo will give you a taste of the dynamic gameplay and challenging boss fight that makes my game so special. The demo will only feature the first phase of the fight for you to train until the full release later this year! I am really excited for you to try it out and can't wait to hear your feedback. Mark your calendars and get ready for an unforgettable fight! Stay tuned for more updates