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Side Effects

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Side Effects is a dark, strategy-driven survival game where every pill could save you—or destroy you. Locked in a twisted medical trial against another test subject, each decision carries weight as you balance your tolerance, sabotage opponents, and use limited resources wisely. With unpredictable side effects and tense, turn-based gameplay, every round is a gamble for survival. Step into the lab, outsmart your opponent, and prove you can endure the trial!

A DARK TRIAL BEGINS

In the hidden underground lab of Side Effects, two unwilling test subjects awaken to a nightmare. Surrounded by cold steel walls and mysterious pills, they are forced into a deadly pharmaceutical experiment. Survival hinges on cunning, resilience, and a willingness to face risks no one should face. Your goal is to outlast your opponent in a nerve-wracking series of turns. Pills alter your health, resistance, and fate—while items give you a tactical edge.

  • Choose pills strategically: balance healing with the risk of harmful or fatal side effects as your resistance changes each round.
  • Use experimental items effectively: vaccines, clamps, and enhancers can sabotage enemies or safeguard your survival at critical moments.
  • Monitor tolerance closely: stacking effects push your limits, making every decision deadlier and more impactful as the trial intensifies.
  • Read your opponent’s behavior: anticipate bluffs, predict actions, and respond with calculated moves to stay one step ahead.

Controls Guide

  • Mouse: Select pills and interact with items
  • Backspace: Restart the game instantly

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HORROR
SURVIVAL
STRATEGY
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