FPS boss rush roguelite UNYIELDER launches September 29 on Steam and Epic Games Store
New trailer reveals relentless battles with unpredictable, evolving bosses
Tokyo, Japan – September 10th, 2025 – Shueisha Games is excited to announce that TrueWorld Studios' high-speed roguelite boss rush FPS UNYIELDER will officially launch on September 29th at midnight PDT on both Steam and Epic Games Store. Alongside this announcement, a brand-new release date trailer has been revealed, showcasing UNYIELDER's intense 1v1 boss battles and its unique roster of enemies.
UNYIELDER is a single-player roguelite FPS that throws players into relentless 1v1 boss battles against monstrous foes in a post-apocalyptic wasteland. Assemble an arsenal of destruction as you grapple, dash, and smash through Antarctica toward the final boss with powerful weapons and abilities built from the ashes of your defeated foes.
Construct absurd loadouts with an evolving set of weapons, skills and perks, then rely on razor-sharp reflexes as you face off against an unforgettable cast of 40+ bosses in a constantly shifting battlefield. Whether you rise or fall, each attempt fuels your growth, preparing you for the ultimate showdown.
Every victory fuels experimentation with UNYIELDER's innovative "BYOBoss" system, where players assemble their own final boss from salvaged enemy parts, shaping their next challenge and future unlocks. UNYIELDER blends looter-shooters, movement FPS and character action games into an infinitely expandable roguelite packed with memorable, chaotic boss battles that offer something new in every playthrough!
Key Features
Survive Intense 1v1 Boss Battles: Every fight is a high-stakes duel. Time your dodges, read enemy patterns, and fight your way to the top!
40+ Unique Bosses: From deadly humanoids to towering machines, over 40 uniquely designed bosses await. Each encounter changes the way you fight.
Weapon x Mod Synergy: With over 30 weapons and a wide range of random mods, craft the perfect strategy on the fly for every encounter.
90+ Perks to Build Your Style: Mix and match skills earned mid-run to evolve your playstyle. No two runs are ever the same.
