SLAY THE SPIRE / TIPS

Track three keys early

Act IV requires Ruby, Emerald and Sapphire Keys in one run.

QUICK REFERENCESlay the Spire 1Reviewed 2026-10-28Reference / noindex

OVERVIEW

What is Track three keys early?

Act IV requires Ruby, Emerald and Sapphire Keys in one run.

This reference covers gameplay decisions in the original Slay the Spire. Character-specific options and relic synergy can change how useful an item is, so consider your current deck, health, upcoming enemy and available resources before applying a strategy.

PRACTICAL STRATEGY

When and how to use it

Plan campfire, Burning Elite and chest opportunities before Act III ends.

COMMON MISTAKES

What to avoid

Waiting until the final floor can make the optional ending impossible.

CONTINUE ON VOLPEDIA

Related topics and walkthroughs

TIPSPlan boss scaling early

Many bosses demand growing damage or defense over several turns.

ASCENSIONAscension 5

An early major breakpoint where post-boss recovery is reduced.

BOSSESCorrupt Heart

Optional final boss of Act IV, gated behind gathering three colored keys.

PROGRESSIONCorrupt Heart Victory

Optional endgame objective for capable decks that collect the three keys.

Early enemy that gains recurring Strength after setup.

Act I region introducing simple enemies, elites, merchants and an early boss, setting the deck foundation.

ENEMIESJaw Worm

Early enemy whose attacks and buffs demand basic defensive sequencing.

Independent Volpedia editorial resource, not affiliated with Mega Crit. Original game (Slay the Spire 1), reviewed 2026-10-28. Slay the Spire 2 has separate rules, cards and characters and is not included here. Category graphics are original conceptual illustrations, not game screenshots or actual card artwork. Detailed numerical card costs, damage, upgrade effects and drop percentages are omitted where not individually checked. Editorial verification records are stored separately from public articles.