Guidus Stone Reforge Guide: Tharin, Slots & Permanent Progress

The guidus stone reforge guide answers the second-most-asked Guidus Zero question after spirit bonds: what happens to stones when your run ends? IGN's Early Access coverage and Steam store description confirm the loop: break ore veins during runs, accumulate stones in your bag, hit stat thresholds for passive buffs, equip stones in slots to keep them permanently, and convert leftover bag stones into fragments for Tharin the blacksmith to reforge.
If you ignore guidus stone reforge, you lose most of each run's economic value. This guide explains the full stone economy and how it connects to spirit bonds.
Guidus Zero stone system overview
| Concept | Behavior |
|---|---|
| Ore veins | Found on grid floors; break for stones |
| Bag stones | Sum stats while held; lost on death unless equipped |
| Stat thresholds | Combined bag stats unlock passive buffs mid-run |
| Equipment slots | Stones placed here persist after run ends |
| Run end | Unequipped bag stones → stone fragments |
| Tharin | NPC blacksmith; reforge fragments into new stones |
This is Guidus Zero's answer to «roguelike with meta-progression» — runs reset floor progress, but equipped stones and reforge currency carry forward.
guidus stone reforge: when to equip vs hold
Early run (floors 1–3):
- Keep strongest stones in bag for threshold buffs
- Don't equip commons until you understand your build direction
Mid run (post floor 3 boss):
- Equip stones matching your spirit bond element
- Prioritize stats your hero scales with (crit, HP, attack speed)
Before boss or risky elite:
- Equip high-tier stones you can't afford to lose as fragments
- Fragment conversion rate favors reforge over hoarding junk in bag
| Decision | Equip in slot | Leave in bag |
|---|---|---|
| Unique / Legendary stone | Almost always | Rarely |
| Synergy with current bond | Yes | — |
| Temporary stat spike for one fight | No | Yes |
| Duplicate low-tier stone | Reforge via Tharin | Don't equip |
Tharin and guidus stone reforge mechanics
Tharin appears in hub / between-run areas (exact UI varies by patch). Core functions:
- Reforge fragments → random stone with rolled stats
- Create higher tier stones at milestone thresholds (Steam achievements reference Unique and Legendary creation)
- Amplify combat stats that stack with spirit bond procs
guidus stone reforge guide economy tip: short runs that end cleanly with ore collected often beat death-deep runs that lose unequipped legendaries.
Fragment income sources
- Unequipped bag stones at run end (primary)
- Dismantle duplicates if game offers (verify patch notes)
- Hard Mode clears (v2.0.3 added decoration rewards — check stone bonuses)
Stat thresholds: the hidden mid-run power spike
All stones in your bag add together. Crossing thresholds grants buffs during the run even before equipping. Community reports (IGN, TipsPlay) describe this as essential for deep Scar descent.
Practical approach:
- Pick one primary stat line (e.g., attack % or crit)
- Collect same-stat stones even if lower rarity
- Threshold spike → push harder floor before equipping permanents
guidus stone reforge + spirit bonds synergy
Spirit bonds activate after collecting Spirit Power four times (v2.0.3 balance patch, down from five). Artifacts from treasure chests stack elemental effects; at five stacks, artifacts bond with a spirit matching that element.
| System | Role |
|---|---|
| Stones | Permanent stat backbone |
| Artifacts | Run-based elemental stacks |
| Spirit bonds | Elemental burst / passive triggers |
| Tharin reforge | Long-term stone quality |
guidus stone reforge stones that boost the same element as your bonded spirit multiply value. Fire stones + Ignis bond + fire artifacts = coherent build; scattered elements dilute proc rates.
Reforge priority by hero archetype
| Hero style | Reforge target stats | Example heroes (EA roster) |
|---|---|---|
| Dash melee | Attack speed, crit, dash cooldown | Chatri-style warriors |
| Ranged kite | Crit, range, dodge recovery | Zin-style mages |
| Bruiser | HP, poise damage, stagger | Tank archetypes |
Cross-reference hero builds and best build guide for character-specific lines.
Common guidus stone reforge mistakes
- Never equipping — fragments are useful but equipping legendaries is the point
- Equipping everything early — wastes slots on stones you'll replace in 2 floors
- Ignoring Tharin between runs — fragment hoarding without reforge stalls power curve
- Reforging before understanding bond element — rerolls cost time
- Confusing mobile Guidus gold upgrades with Zero stones — see Zero vs mobile
Hard Mode and stone economy
v2.0.3 rebalanced Twilight+ difficulty and trait overperformers. Hard Mode now rewards players with stone/bond-ready builds:
- Expect fewer careless bag-stone losses — survival > greed
- Reforge budget harder to earn; equip decisions matter more
guidus stone reforge FAQ
Do equipped stones drop on death mid-run?
Equipped stones persist after run ends; mid-run death mechanics follow current patch — treat bag stones as at-risk.
Can I trade stones?
Guidus Zero is single-player; no player trading.
guidus stone reforge vs spirit shards?
Stones = stats; spirit shards/bonds = elemental abilities. Fund both, don't skip stones for bond hype.
Xbox version?
Console port planned; stone system expected parity — watch Zero vs mobile for platform updates.
