hephaistos VS SteamAchievementManager

Quick tip, you can install this in Desktop mode (it's an easy process) to make Hades fill the entire Steam Deck screen (without black bars on top and bottom). It looks even better that way.

You can run it in 16:10 using this https://github.com/nbusseneau/hephaistos

With this small mod from github

The game is locked in 16/9 aspect ratio though, I recommend you use Hephaistos if you’d like to run it without black bars on the computer’s internal display :)

Hephaistos mod author here. The issue happens because your monitor reports back too many supported resolution to the game, and the list of resolutions available gets trimmed to 9.

The game doesnt properly support the deck's resolution so it's letterboxed, but there is a mod to change that if it bothers you: https://github.com/nbusseneau/hephaistos

The repo has instructions for Linux/Steam Deck: https://github.com/nbusseneau/hephaistos

Pirates CAN'T unlock Steam SERVER achievements because Piracy is on Local files so he get that part right and no https://github.com/gibbed/SteamAchievementManager isn't Emulating anything for Pirates because it merely mimics a "Customer" can do and Steam checks if the user is an Owner to let SAM do the Achievements unlock thing. Also please read How the https://partner.steamgames.com/doc/features/achievements work because Steam doesn't care about how the Developers use the "Tool" they given to them for their achievements.

Download the Steam achievement manager here: https://github.com/gibbed/SteamAchievementManager/releases/tag/7.0.25

Release 7.0.25 · gibbed/SteamAchievementManager · GitHub

Alternatively to the other two suggestions: https://github.com/gibbed/SteamAchievementManager

Use Steam Achievement Manager and unlock it yourself.