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TrinityS
TrinityS condenses the thrilling elements of MMO RPG endgame encounters into a white-knuckle, "Boss Rush" cooperative online action game for up to three players. Skip the MMO level grind and face off against fearsome foes that require precise coordination to defeat!
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via SteamSpy as of 2026-05-14.
“Excellent experience with two friends, if you have a group that likes strategy and theory crafting, it doesnt even matter if you dont have raiding experience or dont typically like this style. Well balanced game, perfectly challenging and evocative!”
— a player, Steam review · 26 hrs played“This game is peak. While the gameplay feels clunky at first. The mechanic of having to stay still for power actually plays a huge part in the games boss fights. The boss fights are unique and interesting. Some of the fights are a bit difficult but with time and perserverance…”
— a player, Steam review · 29 hrs playedLatest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
[TrinityS] Notice Regarding Changes to Network Service Specifications
Thank you for playing TrinityS . Due to changes in the network service specifications currently used by the Steam version of TrinityS , some players may experience connection issues. If you encounter
[TGS2024 Sale & Console release 1st anniv] Campaign with Winnable Prizes!
Dear brave challengers facing mighty bosses, This is the TrinityS development team. Thank you very much for playing TrinityS on a regular basis. The console version of TrinityS, which was released las
[Patch Notes] 1.1.1.1
Challengers Facing Mighty Bosses! This is the TrinityS development team. Thank you for always playing TrinityS. This update includes feature improvements and several bug fixes. *Note: Due to the imple
[Patch Notes] 1.1.1.0
Challengers Facing Mighty Bosses! This is the TrinityS development team. Thank you for always playing TrinityS. This update includes feature improvements and several bug fixes. *Note: Due to the imple
Bug Fixes related to game sessions (1.1.0.1)
important bug fixes We have fixed the issue causing freezes upon entering the lobby under specific conditions, preventing players from enjoying online multiplayer properly. We sincerely apologize for
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-14.
| Genres | Action, Casual, Indie |
| Player tags | Action · Casual · Top-Down · Online Co-Op · Multiplayer · Co-op · Arcade · Party-Based RPG · Action RPG · Magic · Stylized · Fantasy (SteamSpy community voting) |
| Features | Single-player · Multi-player · Co-op · Online Co-op · Steam Achievements · Partial Controller Support · Steam Cloud · Family Sharing |
| Languages | English, Japanese * , Simplified Chinese, Traditional Chinese * |
| Achievements | 27 |
| Estimated owners | 0 – 20,000 (SteamSpy) |
| Official site | https://www.indie-us-games.co.jp/trinitys |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS *: Windows 7 64-bit Processor: Intel Core i3 6300 or equivalent Memory: 4 GB RAM Graphics: NVIDIA GeForce GTX 680 or equivalent DirectX: Version 11 Network: Broadband Internet connection Storage: 5 GB available space