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One Boss One Fight

Also known as One Boss One Fight, obof, one boss one fight

One Boss One Fight is Action Roguelike game centered around intense Boss battles, multiple heroes, and Viking god powers. Traverse a dark world, build through abilities and constellations, and survive unforgiving encounters.

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Last update

22 May 2026

Original sources

Latest update

EventPublished 02 May 2026

v2.0002.000 fights already done!

Version 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 peo…

2 changes

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Latest updates

Update history

Browse past updates and patch notes for this game.

18updates

April 2026
Small Fixes and thank you!Version 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 feedb…Event5 changesFixGameplay04 Apr 2026
March 2026
Version 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,…v2.010 changesGameplayBalancePatch notes06 Mar 2026
October 2025
One Boss One Fight [v1.0] 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 multi…1 changeGameplayPatch notes31 Oct 2025
February 2025
Thank 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 fil…2 changesMapsGameplayPatch notes19 Feb 2025
December 2024
Thank 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 fil…1 changeGameplayPatch notes23 Dec 2024
Release Patch 11!Release Patch 11 - The Blood Patch! [h5] Main [/h5] 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…Event#118 changesGameplayBalance07 Dec 2024
Release Patch 10!Release Patch 10 ! [h5] Main [/h5] 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…Event#1015 changes3 numericFix02 Dec 2024
November 2024
Release Patch 9!Release Patch 9 ! [h5] Main [/h5] 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…Event7 changesFixBalance30 Nov 2024
Release Patch 8!Release Patch 8 ! [h5] Main [/h5] 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…Event18 changes1 numericFix28 Nov 2024
Demo Patch 7!Demo Patch 7 ! [h5] Main [/h5] 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…Event22 changes1 numericGameplay13 Nov 2024
October 2024
Demo Patch 6!Demo Patch 6 ! [h5] Main [/h5] 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…Event15 changes2 numericGameplay31 Oct 2024

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