Rule Modifiers
1 optionToggle protection against health loss from damage.
View rule modifiers →Ultros combines close combat with exploration and gardening in a vivid alien world. These mods give you ways to recover health, reduce combat pressure and change how you travel between discoveries.

Use Restore health when Ouji needs a refill. Damage protection helps you keep your health during combat, while Movement speed and Fly give you different ways to travel.
Open Ultros in Bytonian Mods, choose the mod you want and use its controls during gameplay. Expand Movement speed or Fly to adjust the settings. Land somewhere safe before turning Fly off.
Toggle protection against health loss from damage.
View rule modifiers →Walk faster or hover with adjustable flight controls.
View ability modifiers →Restore missing health with a single action.
View game actions →Browse the Steam achievement names and descriptions for Ultros. Choose and unlock achievements for free with Bytonian Mods in the Windows app.
View all achievements →Download the Windows app and follow the setup prompts.
Open Ultros and select it in Bytonian Mods. Follow the app’s connection prompts.
Review the available options in the app and choose the ones that suit how you play.