Start by treating exploration as a second deckbuilding game, not downtime between fights. Keep both decks lean, spend Explore cards on the obstacle they actually solve, watch the damage preview before resting, and grow a small number of reliable attacks instead of collecting every reward you see.
Version note: This page is written for the September 10, 2026 Early Access launch. Shroom and Gloom is actively changing, so treat older demo videos as historical unless the same behavior appears in launch footage or official notes.
The run loop in plain English
A run alternates between combat and exploration. Combat is where your attack cards, Fatal triggers, Vulnerable setups and food generation matter. Exploration is where you open routes, build or repair structures, upgrade cards, manage health and prepare the next fight.
The easy mistake is to treat every offered card as free power. It is not. Every extra card competes with the cards you actually want to draw. Launch footage repeatedly shows strong runs becoming awkward once the hand is full of low-impact options.
Five rules that make the game easier
- Grow a core attack instead of everything. Practice structures and growth effects become much more valuable when they repeatedly improve the card that already carries your damage.
- Use Fatal deliberately. A Fatal effect only matters if that card gets the kill. Set up the enemy first, then spend the finisher.
- Keep food as both healing and economy. Toasties can rescue health, but food also interacts with shops and build effects. Do not auto-eat every piece the moment it appears.
- Read the rest cost before ending exploration. Threat can make another rest expensive; Warmth can reduce that penalty.
- Forget weak cards. Paying to remove a mediocre card is often better than buying another mediocre card.
What each Explore action is for
| Action | What to look for | Practical use |
|---|---|---|
| Dig | buried spot / soft ground | rewards, route resources, cards |
| Unlock | doors, chests, gated objects | safer than bashing when a key effect is available |
| Break | blocked or breakable objects | brute-force progress, sometimes with a health cost |
| Reveal | obscured objects / Gloom-covered interactables | exposes options you cannot use yet |
| Fix | broken structures | enables stations and Facility machinery |
| Ignite | flammable objects / camp structures | commonly creates Warmth or related effects |
| Feed | creatures or food-accepting objects | trades food for rewards or new resources |
A clean first-run decision order
Before you rest, ask: Is there an object I can reveal, fix, unlock, feed, ignite or dig first? Then check the displayed rest penalty. If a cheap action creates Warmth or another resource, take it before accepting damage. If your Explore hand is dead, resting may still be correct — just make it a decision rather than a reflex.
Deck building without the trap
A small deck does not mean refusing every reward. It means having a reason for each card. If your best attack scales when cards grow, prioritize growth and draw. If your run creates Toasties on Fatal kills, prioritize reliable finishers and ways to convert food into more value. If you cannot describe what a new card improves, skipping it is often the cleaner choice.
Where to go next
Use the Deck Systems guide for the three deck layers, the Warmth & Threat guide before risky rest chains, and the Run Planner as a quick second-screen checklist.