Below, I go over all of the monsters you will encounter on your adventures through the desert and beyond. Some monsters you will see often and others will only appear once. They all have unique behaviors, so I've included a little description to give you an idea of how these things work. Check them out if you dare.
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Gallery of all enemies
Combine
Reapers are twisted creatures - cursed, undead beings with elongated limbs. Their goal is only to kill and collect. These are the main opponents of the game and the monsters you will most often see while exploring. They have poor vision and hearing, so sneaking around and staying low is usually enough to avoid them.
Harvester (Leon)
A former member of your expedition, Leon is an Australian trapped in the strange underground chambers of a Roman ruin. Cursed and in the process of transforming into a Harvester, he still has a memory of his past life. You can hear him screaming and yelling about your character, and he openly taunts you while hunting through the maze.
Searcher
These strange ethereal creatures protect the great factories of the other world. Unlike Harvesters, these floating spawns don't physically attack you. Instead, they use a special device that emits a bright light. When spotted, they light you up until you succumb. They can fly and teleport at will, making them much more difficult opponents.
Empress
The final boss and the enemy of the game. The Empress has both physical form and an apparition form that she can project into the astral. She uses an amulet to transform you into a reaper, just like seekers, but cannot move from her perch above the throne. The Empress is an ancient, twisted creature with a face split in two. Most of its body has turned into venous protuberances that spread like roots in the beating heart-shaped seed where it resides.
She can both see you and hear you. If she can hear you, her light can dispel the odd vines from her room, leaving you exposed. Like all monsters, if you manage to fight you can break free and continue to escape. There are several ways to deal with the Empress at the end of the game.
