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Rewrite fate in the echoes.
A fixed-position defense roguelike: automatic fire, target selection, reward drafting and synergy builds. Clear four encounters, then keep your build in endless mode.
- Choose Begin resonance (开始共鸣). Your ship fires automatically from the bottom of the arena.
- Click or tap an enemy or gold chest to focus it; click empty space to restore automatic targeting.
- Break a chest and pick one card. Combat and clocks stop while selecting.
- Collect 3 / 6 / 9 stacks in a family to unlock its synergy tiers. Duplicates count.
- Prioritize enemies able to attack, interrupt a leader and fire into its 2s weak point. From endless depth 4, reselect a leader for each warning to enable primary-hit interruption after forming; enough damage can still interrupt without confirmation.
- After the fourth reward, choose Continue endless · Keep build (继续无尽 · 保留构筑), or restart.

The game and documentation support English and Simplified Chinese. Use English / 中文 in the header to switch immediately, including help, cards, numerical previews and accessibility labels. Chinese is the default; local storage remembers your choice when available. A language change preserves the current run and reward options. The screenshots below retain the earlier Chinese version.
Clear waves and elites before the main boss; from layer four, a Colossus and Wizard share one elite segment, creating a choice of which warning to counter. Three segment supplies support build choices. Training uses finite-budget kill credit with gradually rising thresholds, separate from score. Boss and elite casts are telegraphed and interruptible; weak-point primaries add 1% maximum-HP damage within the shared bucket, with no lifesteal from that added component. An endless main boss keeps charging aimed shots even between its queued threshold skills; death echoes and a brief clearance afterglow make the action readable. High-star minions resist percentage damage and control. From depth 7, mixed wave packs, a depth-scaled minion percentage allowance, and shared combat recovery/shield limits add pressure while preserving the mean wave admission interval. Lifesteal keeps its separate own-HP allowance. The normal four-stage pacing goal is 8–12 combat minutes, subject to measured calibration and playtesting. Historical v1/v2/v3 calibration remains rejected. V4 completed fresh300/600/120 matrices, passed normal-build pacing and was accepted for PRE candidate delivery with documented strong-build and early-attrition limits. Publication and human playtesting are separate evidence.
| Page | Contents |
|---|---|
| Cards | Every augment and training: effects, starting previews, rarity, limits and unlocks |
| Builds | All 12 families and their 3 / 6 / 9 stack bonuses |
| Enemies | Numeric reference, attack permission, taunt, poison and fusion |
| Stages | Campaign, endless scaling, attack grids, boss skills and rewards |
| Mechanics | Targeting, damage, recovery, Sanctuary, pause and restart |
| Development | Setup, browser testing, architecture, deployment and Wiki maintenance |
| Gallery | High-resolution screenshots, captions and capture instructions |
| Brand | Logo versions, exact generation prompt and editable source |
| Changelog | Future release template and commit-backed history |
| Validation history | Historical evidence and known limits |
| Input | Action |
|---|---|
| Mouse / touch on an enemy or chest | Set a legal priority target |
| Empty arena / C | Clear manual target |
| T with arena focused | Cycle legal targets; selecting a warning leader also confirms this cast |
| F with arena focused / tap the selected leader again | Reselect the current target; confirm its current warning |
| Esc / P / pause button | Pause or resume; cannot skip a reward |
| Tab / Enter / Space | Navigate and activate native controls |
| WASD / arrows / dragging | Does not move the ship |
Open Build (本局构筑) to inspect stats, cards and families. Help (玩法说明) opens help. Opening a panel pauses; close it and resume manually. Backgrounding or losing focus also pauses.

No combat save exists: death, restart or refreshing clears the run. WebGL is required. The guide describes repository rules; live environments may carry different revisions. See the changelog for the distinction between source changes and releases.