SLAY THE SPIRE / MODES

Endless Modifier

An available custom-rule option extending the climb beyond ordinary endings.

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

OVERVIEW

What is Endless Modifier?

An available custom-rule option extending the climb beyond ordinary endings.

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 sustained survival and scaling over many loops.

COMMON MISTAKES

What to avoid

Do not describe it as the normal Act IV ending.

CONTINUE ON VOLPEDIA

Related topics and walkthroughs

MODESDaily Climb

Daily seed-based challenge run with special modifiers and leaderboards.

MECHANICSDexterity

Modifier changing Block created from card effects.

MECHANICSStrength

Modifier increasing many attack damage hits and especially multi-hit output.

MODESAscension Mode

Difficulty ladder from low to high Ascensions for individual characters.

MODESCustom Mode

Allows run-rule modifications after the relevant unlock, enabling experimental play.

MODESSeeded Runs

Runs may be replayed or shared using seeds under appropriate conditions.

MODESStandard Run

Core single-player climb through the Spire with character-specific decks and rewards.

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.