Ethereal Plains

You are a U.S. Army Special Forces member sent to stop an ancient godlike being from awakening and destroying Earth.

Your mission is to enter a pyramid in the Yucatan Peninsula, reach the bottom, and detonate a nuclear device to stun the Dreaming God and bury it.

During deployment, your parachute fails, you crash, and are separated from your team, presumed dead.

With only a flashlight and survival knife, you reach the pyramid hours after your team.

The pyramid is filled with monsters created by the slowly waking god, who will fully awaken in five game days.

Gameplay blends first-person shooter, RPG, and survival horror elements.

Solve puzzles and converse with dead individuals (mostly from a Nazi expedition) via a magic yellow crystal to learn pyramid secrets.

Combat requires strategy; monsters respawn, ammo is scarce, you are often under-equipped, and you move at the same speed as monsters.

Health is regained by resting (which speeds up time and leaves you vulnerable) or rare blue potions.

Blue potions are crucial for curing poison and should be saved for later levels.

You start with only a Walther P4 handgun and a survival knife for about half the game.

Picking up certain objects grants points, with two points equaling one health point.

Items include Weapons, Crystals (with unique powers that deplete with use, except the yellow crystal), Potions (with temporary effects), Miscellaneous Items (for puzzles or inventory), and Treasure.