Tokyo, Japan – September 29, 2025 – Shueisha Games is excited to announce that UNYIELDER, a high-speed roguelite boss rush FPS developed by Singapore-based TrueWorld Studios, is now available on Steam and Epic Games Store. A brand-new launch trailer was also revealed today, showcasing that the game's innovative “Boss Crafting” system extends even to the final boss encounter.
Watch the UNYIELDER launch trailer
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.
The “Boss Crafting” system allows players to build and customize their own boss encounters, including the Legendary variants through specific combinations. 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.
- Craft Your Own Challenges: Use resources from fallen enemies to build custom bosses. Create your own final boss encounter and face off against a nightmare of your own making.
For more information on UNYIELDER: Buy UNYIELDER on Steam Buy UNYIELDER on Epic Games Store Check out the website: https://shueisha-games.com/games/unyielder/ Follow on Twitter: https://x.com/SHUEISHA_GAMES Subscribe on YouTube: https://www.youtube.com/@shueishagames6941
About TrueWorld Studios TrueWorld Studios is a game development studio based in Singapore. While UNYIELDER marks their first full-scale original title, the team is composed of veteran developers with experience at major AAA publishers and studios in Southeast Asia. With a commitment to both creative exploration and technical excellence, TrueWorld Studios aims to create unique and high-quality gameplay experiences that defy expectations.
About Shueisha Games Shueisha Games, founded in February 2022 and headquartered in Tokyo, is an enthusiastic and experienced team responsible for the planning, development, and sales of many titles for consoles, PCs and smartphones. | Shueisha website | X (Twitter) | Instagram | Facebook | YouTube |