MONGIL STAR DIVE Steam Deck Performance: NEW Free Anime Action RPG

MONGIL STAR DIVE Steam Deck Performance Test: 2026 Steam Deck Games – Handheld/Docked Gameplay – SteamOS 3.8.1

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NOTES: Mongil Star Dive is playable on Linux/SteamOS via manual install. We can add the installer to Steam as a Non-Steam Game and adjust the file properties similar to the manual setup process used for Genshin Impact. I’ve covered the full method in my guide here: https://www.youtube.com/watch?v=YUXx1lnmPik

The Netmarble launcher for MSD can be tricky to navigate. It took multiple attempts to get the controls working properly for launching the game and logging in and isn’t very user friendly compared to other launchers.

Using UnifiDeck is currently bugged with the launcher. I’ve reported this to the developer, so for now it’s best to try other methods. Heroic Games Launcher may be a better alternative, although I haven’t tested it yet.

Overall, the game runs well on Steam Deck, and so far there are no issues or concerns with the anti-cheat on Linux.

🎮 Steam Deck OLED
🕐 Tested: 15th April 2026
⚙️ SteamOS 3.8.1
🛠️ Installed on Internal Drive (Fresh Clean Install)
📀 Web Version

⏱️ Timestamps ⏱️
00:00 – Medium XeSS 2.0 Quality 60FPS Handheld
01:39 – Settings Menu Handheld
01:52 – Medium XeSS 2.0 Quality Uncapped Handheld
03:37 – Medium XeSS 2.0 Quality 2X FPS Lossless Scaling
04:58 – Settings Menu Docked
05:30 – High XeSS Quality Docked
08:29 – Very High XeSS Quality Docked

Official Site – https://stardive.netmarble.com/en

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Steam Deck OLED
SteamOS 3.8.1
4GB VRAM

Under section 107 of the Copyright Act 1976, allowance is made for “fair use” for purposes such as criticism, comment, news reporting, teaching, scholarship, education, and research.
No Games Are Included Or Added

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