Firestone: Online Idle RPG Combat Guide: Master Every Mechanic

Q: How big is the party?

Up to five heroes plus one guardian. Heroes split into Damage, Tank and Healer specialisations and spend mana, rage or energy on their abilities, across classes including Warrior, Mage, Priest, Druid, Paladin and Rogue.

Q: When do the main heroes unlock?

Boris is the first, arriving at stage 2 with the most health and dodge chance of the early roster. Solaine is the third at stage 7 with the lowest health of any hero, and Leo is the sixth at stage 150 as a Paladin.

Q: Does enchanting carry over when I replace gear?

Yes. Enchantment levels attach to the equipment slot rather than to the item, so upgrading from Common to Mythic in the same slot keeps whatever level you already paid for.

Q: What is the difference between gear tiers?

Tier 1 gear only improves the hero wearing it. Tier 2 and tier 3 gear, unlocked with meteorites and a minimum gear power, give attribute bonuses to every hero you own even when that hero is not in your active party.

Q: Why is my guardian weak in Chaos Rift?

Guardian bonuses from research, experiments, exotics, guild trees and talents do not increase guardian damage inside Chaos Rift. It runs on different rules, so it needs its own approach rather than your campaign loadout.

Firestone: Online Idle RPG combat guide covering every mechanic, advanced techniques, and the strategies that separate good players from great ones.

EarlyGuides Editorial Team

Researched and editorially reviewed. Updated August 12, 2026.

Holyday Studios launched Firestone into Early Access on 26 September 2019 and shipped the 1.0 version on 1 April 2024. You field a party of up to five heroes plus one guardian against waves of enemies in the setting of Alandria, and the party keeps fighting while you are offline. Progress comes from research trees, slot-based gear enchanting and repeated ascensions rather than from manual combat input.

Combat in Firestone: Online Idle RPG rewards knowledge over reflexes. Understanding how each mechanic works (and how they interact) is what turns a struggling player into a dominant one. New here? Start with our beginner's guide for the basics.

Core Combat Mechanics

1. Five hero party plus one guardian

You bring five heroes and a single guardian into each fight. Heroes divide into Damage, Tank and Healer specialisations and spend mana, rage or energy on their abilities, while the guardian supplies passive buffs plus an active screen-clearing hit that unlocks auto attack at Talent Level 21.

Why it matters: This is the foundation of all combat. Everything else builds on this.

2. Slot-based gear enchanting

Enchantment levels attach to the equipment slot rather than to the item sitting in it, so upgrading a Common chestplate to a Mythic one keeps the enchantment level you already paid for. Costs double per enchant level until level 8, then rise by 50 percent per level, then double again for levels 13 and 14.

Why it matters: The most underrated mechanic. Players who master this early have a massive advantage.

3. Firestone and Meteorite research trees

Gold, firestones and meteorites each buy different upgrade trees, and meteorites in particular gate the tier 2 and tier 3 equipment unlocks. Tier 1 gear only helps the hero wearing it, while tier 2 and tier 3 gear give attribute bonuses to every hero you own even when they sit on the bench.

Why it matters: Unlocks a new layer of gameplay depth once understood.

4. War Machine campaign

War machines run a separate campaign from your hero party, fighting enemy war machines and other players' machines with their own upgrade path. It progresses independently, so it keeps earning while the main campaign is stalled on a wall.

Why it matters: The tactical edge that separates average players from advanced ones.

5. Ascension resets

Ascending wipes campaign stage progress in exchange for permanent multipliers, which is the actual engine of long-term growth. Pushing one extra stage before ascending is almost always worth less than ascending sooner and pushing further on the next run.

Why it matters: The endgame optimization mechanic. Small improvements here compound into massive gains.

How These Mechanics Combine

Understanding how mechanics interact is where real optimization happens:

Five hero party plus one guardian + Slot-based gear enchanting

You bring five heroes and a single guardian into each fight. When combined with Slot-based gear enchanting, enchantment levels attach to the equipment slot rather than to the item sitting in it, so upgrading a common chestplate to a mythic one keeps the enchantment level you already paid for. This combination is the core of every effective build.

Firestone and Meteorite research trees + War Machine campaign

Gold, firestones and meteorites each buy different upgrade trees, and meteorites in particular gate the tier 2 and tier 3 equipment unlocks. Paired with War Machine campaign, war machines run a separate campaign from your hero party, fighting enemy war machines and other players' machines with their own upgrade path. This is why the tier list favors builds that leverage both.

Ascension resets as a Multiplier

Ascending wipes campaign stage progress in exchange for permanent multipliers, which is the actual engine of long-term growth. Pushing one extra stage before ascending is almost always worth less than ascending sooner and pushing further on the next run. This system amplifies everything else. The better your Ascension resets optimization, the more your other mechanics pay off.

Combat by Build

Each build approaches combat differently:

Warrior (A-Tier)

Combat approach: Balanced combat style. Key equipment: Weapon Primary mechanic: Five hero party plus one guardian

Warrior offers a solid combat experience. Full setup in our builds guide.

Mage (A-Tier)

Combat approach: Balanced combat style. Key equipment: Chestplate Primary mechanic: Slot-based gear enchanting

Mage offers a solid combat experience. Full setup in our builds guide.

Priest (A-Tier)

Combat approach: Balanced combat style. Key equipment: Boots Primary mechanic: Firestone and Meteorite research trees

Priest offers a solid combat experience. Full setup in our builds guide.

Druid (A-Tier)

Combat approach: Balanced combat style. Key equipment: Wrist Primary mechanic: War Machine campaign

Druid offers a solid combat experience. Full setup in our builds guide.

Paladin (A-Tier)

Combat approach: Balanced combat style. Key equipment: Relic Primary mechanic: Ascension resets

Paladin offers a solid combat experience. Full setup in our builds guide.

Advanced Combat Techniques

Damage Optimization

Match your equipment to your build's stat priorities
Exploit Five hero party plus one guardian for maximum damage windows
Chain Slot-based gear enchanting and Firestone and Meteorite research trees for combo damage
Use War Machine campaign to create openings

Survivability

Learn enemy patterns before committing to attacks
Enchant the slot and not the item. Levels stay attached to the slot, so a Common chestplate enchanted twice stays at level 2 when you replace it with a Mythic one, which means you should never wait for good gear before enchanting.
Position using Five hero party plus one guardian to control spacing
Save defensive options for guaranteed survival, not comfort

Boss Combat

Bosses test your understanding of every mechanic. See our boss guide for fight-specific strategies.

Phase awareness: Most bosses change behavior at health thresholds
Patience over aggression: One extra hit per opening beats dying to greed
Build preparation: Swap gear and equipment for specific fights when needed

Common Combat Mistakes

Button mashing: Committed attacks have recovery frames. Mashing locks you into animations.
Ignoring Slot-based gear enchanting: This mechanic exists for a reason. Players who use it take significantly less damage.
Wrong equipment for the situation: Check our weapons guide for situational picks.
Not learning from deaths: Every death teaches something. If you don't know why you died, you'll die the same way again.
Overcommitting: Trading hits works in Campaign but will get you killed in Alchemist.

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