Developed by Nullus and released initially on TFGamesSite in 2016, Parasite Infection is an interactive HTML game that blends text-based adventure with strategic decision-making. The story follows Chet (or Chloe, depending on your character choice), who is abducted by an alien race known as the Antari and forced to participate in a secret biological weapons program. What follows is a spiral of body horror, mind control, and survival, where the player must strategically deploy parasitic creatures to "pacify" enemies and return to Earth.
Crouch and move behind them to perform a stealth takedown with your combat knife. parasite infection game walkthrough
A giant mass of fused bodies. Attack pattern: Slam (ground AOE), Tongue Grab (instant kill if not broken), Larvae Shower (homing projectiles). Walkthrough cheese: Equip the Broken Mirror shard you found in the hospital chapel. Reflect the Larvae Shower back at the Guardian. This staggers it for 12 seconds. Focus all fire on the screaming face on its left shoulder. Reward: Guardian’s Heart (crafting component for the Final Antidote). Developed by Nullus and released initially on TFGamesSite
: You can create special mutations (Red parasites, etc.) by using a Biosuit and collecting different fluid types (semen, milk) before inserting a parasite into the womb. Crouch and move behind them to perform a
Act I — First Contact (Setup + Tutorial)
If you reply with (e.g., “Roblox – Parasite Infection mode” or “Steam game called Parasite Infection”), I’ll give you a full level-by-level walkthrough.
This is the prologue. You are in a sterile, alien environment and must pacify the crew to escape.