To play RoE at 4K resolution with modern controls, consider using dhewm3 . It is an open-source "source port" that utilizes your original ISO data files but runs them on a modern, stable engine.

While there isn't a "gem currency" in the traditional mobile-game sense, you can achieve an "unlimited" power effect using the game’s built-in console commands.

Unlike the slow-burn horror of the base game, RoE leans more into high-octane action. Key additions include:

Type god to ensure your health and Artifact energy never result in a "Game Over." Performance and Modern Compatibility

The term in the context of Doom 3: RoE typically refers to the Human Souls required to charge the Artifact. In the base game, the Artifact is powered by harvesting the souls of fallen enemies (represented by glowing orbs or "gems"). How to Get "Unlimited" Power

If you are playing the original ISO version on Windows 10 or 11, you may encounter resolution issues.