Read a mushroom’s effect before deciding whether to eat it. Learn which labels describe food, healing, poison or lasting changes, and why appearance alone is not a reliable guide between runs.
TK’s Mushroom Effects guide, published on May 25, describes the groups below. These are a player reference, not a newly tested catalogue for every later patch; use the current game text for exact values and durations.
Useful capacity is different from actually charming another ally.
Prolific
More mushroom spawns.
More opportunities also mean more effects to identify.
Mystic
A random permanent stat increase.
The result is not a selectable missing upgrade.
Deafening / Hallucinogenic
Altered sound / visuals.
Consider whether reduced perception would make the current encounter harder.
Identify the effect within this run
In a July 12 Steam reply, Haiken explains that identification can reveal the effect when Darwin approaches; failure leaves “???”. The same appearance keeps its effect during one run, while the mapping changes between runs. Treat this as a dated player explanation: remember a confirmed appearance within the run, and do not carry its meaning into the next one.
Official 1.1 notes changed mushroom experience to scale with Herbivore and Vegan and increased the contribution of Senses to identification. An old fixed food value or identification assumption may therefore be outdated.
If the effect is unreadable and losing health would end the attempt, leave it and use a known food source.
Poison resistance, healing and poison-dependent upgrades are different benefits. Possessing one does not prove that an unidentified mushroom is safe.
Judge the reward against your current objective. A survival option in an ordinary run may break a no-damage or healing-restricted challenge.
In a September 15 developer reply about version 1.2, Odd Dreams Digital says Lethal is the only mushroom type with a real chance of fatal damage near full health. That does not make other unknown mushrooms safe at low health. More Senses helps identify them; poison resistance changes the risk. The developer also describes avoiding mushroom damage by entering a burrow or levelling up as advanced timing options, not guarantees for every situation.
A separate August 28 player report says poison did not affect Darwin inside a burrow and appeared unable to apply there. Treat that as one observation, not a confirmed cure: the post does not show that entering a burrow removes poison already applied, how long protection lasts, or whether every source of poison follows the same rule.
Which mushroom should I choose when several are nearby?
Start with the effect you need, then compare the route. Food progress, healing, identification and poison support solve different problems. A known food mushroom on a clear path may be more useful than an unidentified one behind enemies. This is a routing choice, not a claim that a particular colour is always safe or that the nearest mushroom is always best. Source
Does a remembered appearance replace identification?
Only use a remembered match within the same run described by Haiken’s explanation. A screenshot from an earlier run cannot establish today’s effect. If the current label remains unreadable, keep the uncertainty in the decision instead of treating familiarity as confirmation. A failed identification is not evidence that the effect is harmless. Source
Should I try to cancel poison damage during a critical attempt?
Do not make a fragile achievement attempt depend on an unmeasured timing trick. The developer describes burrowing and levelling as advanced ways to avoid mushroom damage; that is less information than a guaranteed rescue window. If your objective cannot tolerate damage, leaving an unknown mushroom avoids needing that rescue at all. Source
Update history
: Added mushroom-choice questions covering food, identification and poison risk. Kept remembered appearances within the same run and distinguished the developer’s advanced avoidance advice from a guaranteed rescue window.
