Tides
The Swift doesn’t have an ordinary day and night. Its time runs in three tides, Surge, Slack and Undertow, and each one changes what the Swift’s souls do.
The Swift keeps its own time, separate from the Overworld’s, and a full cycle of tides takes 20 minutes, as long as a Minecraft day. Slack comes at dawn, the Surge runs through the day, Slack returns at dusk and the Undertow lasts all night. Outside the Swift, nothing changes.
| Tide | When | What changes |
|---|---|---|
| Slack | Dawn and dusk, 1 minute 40 seconds each | Nothing. The Swift is calm. |
| Surge | The day, 8 minutes 20 seconds | Soul Blocks recharge twice as fast, and echo golems send out their soul pulse twice as often. |
| Undertow | The night, 8 minutes 20 seconds | Soul Blocks stop recharging and echo golems stop pulsing. Half the monsters that spawn are soul-warped. |
Knowing the tide
When you arrive in the Swift, a message tells you the tide. Whenever it turns, its name appears on screen with a chime. The sky shows it too: clear turquoise during the Surge, warm peach and rose during Slack, and deep violet with stars and aurora during the Undertow.
Soul-warped monsters
During the Undertow, half the monsters that spawn in the Swift are soul-warped. They burn with blue soul fire and are tougher than usual: they have 4 extra hearts, and their melee attacks deal 1½ hearts more. Each one has a trait:
- Burning: its hits set you on fire.
- Freezing: its hits slow you down and frost the edges of your vision.
- Fleet: it moves much faster.
The warping fades as soon as the tide turns. Bosses, monsters that live in structures and monsters from spawn eggs are never warped.