Shroom and Gloom Beginner Guide: Build Better Decks, Survive the Gloom, and Win Runs

Use this Shroom and Gloom beginner guide to master Explore and Combat decks, manage food and gloom damage, upgrade cards, and survive longer runs.

Shroom and Gloom Beginner Guide: Understand the Run

Shroom and Gloom looks like a card game, but every decision also spends resources in a hostile, hand-drawn dungeon. This Shroom and Gloom beginner guide shows you how to coordinate the Explore and Combat decks, turn defeated fungi into healing, and improve cards without bleeding away your run. Read this Shroom and Gloom beginner guide before your first serious attempt so you can recognize good rewards, judge campfire risks, and reach the Gloom with a coherent plan.

Shroom and Gloom is a first-person roguelike deckbuilder built around a “double-decker” system. The developer’s official prototype page for Shroom and Gloom describes two distinct decks: one for navigating dungeons and one for surviving fights. A build-scoped community database also documents a smaller Foresight deck with passive effects.

The available information covers different versions of the prototype and demo. The database labels exact card values to Steam demo build 23718635, while the developer’s Steam announcements discuss the upcoming Early Access version. If a number or card description differs, trust the wording shown in your current game. For availability and the latest official information, check the official Shroom and Gloom Steam page.

System	Main job	Beginner objective
Explore deck	Movement, searching, setup, card modification, and unlocking	Keep enough utility to reach the next room safely
Combat deck	Attacks, skills, defenses, status effects, and finishing enemies	Build one reliable damage plan instead of collecting everything
Foresight deck	Passive premonitions that trigger while exploring or fighting	Favor effects that activate repeatedly during a run

The most important early goal is not to find the rarest card. It is to create a repeatable loop: explore efficiently, win the next fight, convert kills into food or upgrades, and enter the following room healthier and more consistent than before.

A third-party database snapshot gives an idea of the demo’s scale: it lists 523 named cards across the Explore and Combat decks, 288 Combat entries, 14 Foresight cards, 12 biomes, 14 Explore room types, 35 hazards, 39 enemies, and 22 encounters. These figures are version-specific, so use them as context rather than promises about the finished game.

Build Both Decks Around a Clear Plan

The central lesson of this Shroom and Gloom beginner guide is to build for your next obstacle, not for an imaginary perfect deck. An excellent Combat card does nothing if your Explore deck cannot reach the next reward, while a powerful exploration tool cannot save a run that lacks damage.

When choosing a reward, ask three questions:

Which deck receives this card?
Does it solve the problem that just ended my last fight?
Does it work with something I already own?

Card role	Keep it when…	What it provides
Exploration utility	You are regularly missing keys, reveals, digging, or breaking options	Access to rooms, resources, and progression
Reliable damage	It can be upgraded, scales with other effects, or creates value on a lethal hit	A dependable way to end fights
Food or healing	It restores health or supports a kill-and-eat loop	Recovery after hazards and combat
Energy or card draw	Your hand often contains cards you cannot afford or use	More actions and fewer dead turns
Card removal	Your deck contains weak starters or effects you never play	Better odds of drawing your strongest cards

A good beginner deck usually has a clear center:

One primary damage plan: Choose an attack or attack package that becomes stronger through upgrades, status effects, or repeated use.
A survival plan: Keep food, healing, or defensive options available. The game’s official description emphasizes roasting and eating enemies to restore lost health.
Enough Explore access: Do not remove every key, reveal, dig, or break option just because it is not a Combat card.
A removal plan: Effects that let you forget cards become more valuable as your deck fills with situational rewards.

Avoid taking every card simply because it is free or flashy. A card that looks strong on its own may make your best attack less likely to appear. Two or three cards that support one another are usually more useful than a collection of unrelated effects.

Exploration: Spend Actions Before Gloom Catches You

In this Shroom and Gloom beginner guide, exploration is where runs are won or quietly bled out. The Explore deck does more than move you from room to room; it determines whether you can reveal, break, dig, unlock, feed, repair, or prepare the environment before your next battle.

Before playing an exploration card, look at every available prompt. A locked door may need a key, an unknown object may reward a reveal, and a breakable obstacle may be better left alone if the cost is higher than the reward. The correct action is not always the one that gives the biggest immediate benefit. It is the action that leaves you able to handle the next room.

Situation	Preferred approach	Common mistake
Locked door	Use the matching key or an effect that explicitly unlocks it	Spending the key on an optional interaction
Unknown or hidden object	Reveal it when the reward is worth the card or energy	Revealing every object without checking the cost
Diggable location	Use a dig tool when you need a card, food, or route option	Digging repeatedly while a hazard is already growing
Breakable obstacle	Bash or break it when it opens progress or gives meaningful value	Destroying useful-looking objects without reading the prompt
Campfire or rest point	Rest when the healing or setup outweighs the displayed danger	Treating rest as free and remaining too long
Creature or feeding prompt	Feed only when you have spare food and understand the reward	Sacrificing your last healing item for an uncertain payoff
Toasty Shop	Spend Toasties on a card that fixes your current weakness	Buying an interesting card while entering the next fight empty-handed

Player experience note: In the recorded demo run, campfires provided warmth and a place to rest, but lingering could produce additional damage or hazards. The player repeatedly had to choose between one more search and leaving before the penalty became dangerous. Your own run should use the number shown by the current prompt rather than relying on a fixed campfire rule.

A useful campfire routine is:

Check your health and the next damage penalty.
Play any low-cost action that prevents a hazard or creates immediate value.
Rest only if the resulting recovery is worth the cost.
Leave as soon as another rest would put your health at serious risk.

Exploration structures can also define a run. Player experience from the recorded run showed a Kitchen applying seasoning to weapons, while a Grimoire enhanced attacks. Choose the structure that matches your Combat deck: seasoning is more attractive when you frequently attack multiple times, while attack enchantments are valuable when one scalable card is doing most of the work.

Food requires similar judgment. A Toasty may heal you, feed a creature, or become part of a shop transaction. Do not spend your entire supply just because you are missing a small amount of health. Keeping one or two recovery options for the next difficult encounter can be more valuable than squeezing extra value from the current room.

Combat: Turn Every Kill Into Healing and Momentum

This Shroom and Gloom beginner guide treats combat as a conversion puzzle. You are not merely trying to reduce enemy health; you are trying to turn each safe kill into damage growth, food, max health, energy, or a better future hand.

At the beginning of a fight, inspect enemy perks and intentions. Community reports recommend reading enemy traits before choosing targets, and the recorded player run repeatedly prioritized enemies preparing large attacks or negative effects. A sleeping or defending enemy may be less urgent than a smaller opponent who is about to buff the entire group.

Use this general sequence:

Priority	Question to ask	Practical action
1. Threat scan	Which enemy attacks, buffs allies, or applies a dangerous effect next?	Focus that target first unless a lethal reward changes the calculation
2. Setup	Can seasoning, Bless, Vulnerable, or another effect improve your main attack?	Apply the setup before playing the finisher
3. Lethal trigger	Does killing this enemy create food, max health, energy, or another reward?	Assign the final hit to the card that gains the most value
4. Recovery	Can you safely eat after the threat is removed?	Use Toasties or other food to restore health before the next exchange
5. Next turn	Is anyone still attacking, armored, or about to evolve?	Keep enough energy or draw to answer the next threat

The official prototype description highlights a central feature of the game: roast enemies, eat them to recover lost health, and potentially use them in soups. In the demo run, Toasties and Spicy Toasties served as an important safety net. This means a lethal attack with a food-producing effect can be better than a slightly larger attack that leaves no recovery behind.

Status effects should usually come before your biggest hit. If a card becomes stronger when it gains damage, improve it before playing it. If an attack has an “if fatal” reward, do not waste it on a target that another cheap card could finish. These small timing decisions are how an ordinary attack becomes a run-defining weapon.

Observed demo example	Beginner takeaway	Best use
Toasty and Spicy Toasty	Food is both healing and a possible resource for other interactions	Preserve some for after high-damage encounters
Vicarious Mace	A version seen in the recorded run gained damage and lingered after being played	Concentrate upgrades on repeatable scaling attacks
Fungal Growth	A temporary damage increase can be valuable even when it exhausts	Use it to secure a lethal hit or break a dangerous turn
Toad Juice or Home of Toad	Forgetting a card improves the quality of future hands	Remove a weak starter or card you consistently skip
Golden Pollen	A consumable Bless effect can multiply the value of one key attack	Play it before a high-impact strike rather than on a minor hit

These examples are role guides, not a universal tier list. Card values and wording can change between builds. The important pattern is to identify what your deck already does well, then make that plan more consistent.

Do not over-setup while an enemy is preparing a lethal attack. A huge future number has no value if you lose before playing it. When in doubt, remove the most immediate threat, heal with the food you earned, and save your expensive combo for a turn when the battlefield is under control.

Route Planning, Card Removal, and a First-Run Checklist

Use this Shroom and Gloom beginner guide as a route-planning tool, not just a combat walkthrough. The best room is the one that fixes your current weakness.

Current problem	Look for	Decision rule
Health is too low	Food, healing, or a full-heal room	Choose recovery if your health cannot cover the next encounter
Your deck is inconsistent	Forget, removal, or card-transforming effects	Remove cards you regularly skip before adding more options
Damage is falling behind	Combat upgrades, attack enchantments, or scalable attacks	Improve the card you expect to draw and play repeatedly
You cannot interact with rooms	Keys, reveal effects, digging, or breaking tools	Protect at least one reliable way to answer common obstacles
You have enough damage but poor endurance	Energy, card draw, max health, or repeatable Foresight	Favor effects that help across several rooms instead of one burst

Community reports from the demo mention that decks can become cluttered quickly and that an early mole shop may appear before a player has enough Toasties to afford the best options. The practical response is simple: do not buy every tempting card, and treat card removal as a real reward rather than a consolation prize.

Foresight deserves separate attention. The build-scoped database describes it as a passive deck, with examples such as drawing a card after feeding or creating a useful effect at the start of exploration. When choosing between Foresight options, favor the one that will trigger repeatedly. A modest effect that activates in many rooms can outperform a dramatic effect that rarely applies.

A practical first-run checklist

Keep this Shroom and Gloom beginner guide open during your first few runs and use the following checklist:

Opening rooms: Use your Explore cards to solve the immediate obstacle before taking an optional detour.
First Combat rewards: Choose one dependable damage direction and avoid collecting unrelated attacks.
Food management: Keep recovery available for the next difficult fight instead of healing every time you lose a small amount of health.
Campfires: Compare the displayed rest penalty with the amount you will recover. Leave when the danger begins to outpace the benefit.
Card removal: Forget weak starter cards or effects that no longer support your deck.
Before a major fight: Have one scalable attack, one recovery line, and enough Explore utility to reach the next objective.
At the Gloom door: Do not spend the key or reveal tool needed for progression on a low-value side interaction.
After victory: Choose a Foresight effect that supports your actual deck rather than one that looks impressive in isolation.

Player experience note: In the recorded run, a Mushroom Key opened a Gloom door, and victory revealed a new path called the Facility. This illustrates how exploration tools can gate progression, but route names and unlocks may differ in another build.

The developer’s Steam announcement also describes separate paths with unique card pools for Early Access. That makes route awareness even more important: a strategy that works on one path may not provide the same rewards on another.

Shroom and Gloom Beginner Guide FAQ

What are the two main decks in Shroom and Gloom?

The Explore deck handles movement, searching, setup, card modification, and interactions with the dungeon. The Combat deck contains the attacks, skills, defenses, and other effects used during battles. You need both decks to work together because exploration determines the opportunities available before combat.

Is Foresight another deck?

Yes. The build-scoped database describes Foresight as a smaller, passive deck separate from Explore and Combat. Its effects can trigger during exploration or combat, so prioritize reliable repeat triggers over effects that only help in rare situations.

Should I take every card reward?

No. Adding a card is only worthwhile when it improves your current plan. Favor scalable damage, food generation, card draw, energy, useful exploration tools, or card removal. A smaller deck with consistent draws is generally easier to pilot than a large pile of disconnected effects.

Can I use this Shroom and Gloom beginner guide after an update?

Yes, use the strategic principles, but recheck every card description and room cost in your version. The available database is tied to demo build 23718635, and the game is moving toward Early Access. The safest habits remain the same: build both decks deliberately, manage food, respect gloom damage, and remove cards that no longer contribute.