Endless Mode Best Build — Deep Dive

Endless Mode does not have a single best build — it has three distinct phases, each with different requirements, and the runs that reach Round 150+ are the ones that execute all three transitions correctly. This guide presents three complete builds: the R50 Foundation that survives the flat damage wall, the R100 Percentage Build that climbs past it, and the R150+ Optimised Stack that represents the current Season 1 ceiling. Each comes with full item loadouts for all three towers, skill tree paths, and the Cauldron schedule that assembles it efficiently.

The Three Build Phases — Overview

Every successful deep Endless Mode run evolves through three distinct item states. You don't start with the Round 150 build — you build toward it, shedding items that stop scaling and replacing them with items that scale forever. The three builds below represent those three states.

The key insight that separates a 50-round run from a 150-round run is not raw item power — it is understanding when each item stops working and replacing it before the run feels that limitation. The Wand of Lightning works beautifully at Round 30. At Round 55 it barely dents an enemy. Players who keep the Wand past Round 40 don't make it to Round 80, regardless of how good their other items are.

Build 1 — R50 Foundation

Build 2 — R100 Percentage Stack

Build 3 — R150+ Optimised Stack

Party Composition

All three builds above assume the same fundamental party composition. Variation only applies on dual-path maps where a second Archer is added.

The Critical Transitions

Transitioning between the three build phases at the wrong time — too early or too late — is the most common cause of deep-run failures. The table below gives the exact round windows and the specific item changes at each transition point.

Adapting When Key Items Don't Drop

The builds above assume you find the key items at the right time. Endless Mode is roguelite — the shop is random. Here's how to adapt the three most critical missing items.

Positioning for Endless Mode Specifically

The positioning that works in Story Mode becomes insufficient in Endless Mode around Round 50. Three specific adjustments matter:

Defender pullback at Round 50–55

Move the Defender one tile back from the chokepoint edge. Enemies at Round 50+ cross the chokepoint edge before the taunt radius fully engages them, meaning some enemies pass the Defender without being stopped. One tile back extends the taunt contact window — more time taunted, more Bleed Lance ticks, more Stone Hammer knockback procs before enemies reach the base.

Archer retreat vector planning

From Round 60+, the Archer is repositioned backward multiple times per wave as enemy speed pushes it away from the kill zone. Every backward throw must be planned to maintain maximum distance from the Defender and Healer cluster — throwing the Archer toward safety instinctively means throwing it toward other towers, which cancels Lone Ranger. Plan each retreat vector toward empty terrain, not toward the party.

Healer lateral discipline under pressure

From Round 70+, the Healer is also repositioning frequently to maintain coverage through Defender throws. Under time pressure, the Healer's lateral position drifts — it ends up slightly behind the Defender rather than beside it, which starts encroaching toward the Archer's proximity zone. After every Healer repositioning event, check that it is perpendicular to the enemy path, not behind the Defender toward the Archer.

Round Thresholds — What Changes When