# Events

Source page: https://wos.sheet.guide/en/guides/events  
Last checked: 17 Oct 2026  
Unofficial fan site, not affiliated with Century Games. Numbers, unlock days and event rules change with patches and differ between states; treat them as rules of thumb and confirm in-game.

Events are where most rewards come from. Know which ones to save for, and which ones stack.

**TL;DR:** Stack effort: use speedups and resources only when **two events score the same action at once**.

## At a glance

### Growth events

| Event | When | Tip |
| --- | --- | --- |
| [SvS](https://wos.sheet.guide/guides/events/state-vs-state.md) | ~4 weeks | Save speedups for prep days; shield on battle day. |
| [King of Icefield](https://wos.sheet.guide/guides/events/king-of-icefield.md) | ~2 weeks after SvS | Only the day’s theme scores. Opens after your first SvS. |
| [Hall of Chiefs](https://wos.sheet.guide/guides/events/hall-of-chiefs.md) | Young states | One theme per day; later replaced by King of Icefield. |

## Details

### Event calendar

| Event | Type | Rough cadence | Key tip |
| --- | --- | --- | --- |
| [State vs State (SvS)](https://wos.sheet.guide/guides/events/state-vs-state.md) | State war | ~Every 4 weeks | Prep days score growth ([plan your points](https://wos.sheet.guide/tools/svs-calculator.md)); battle day needs shields or a plan. |
| [King of Icefield](https://wos.sheet.guide/guides/events/king-of-icefield.md) | 6-state themed points | ~Every 4 weeks | Opens after your first SvS, about 2 weeks after each one. |
| [Hall of Chiefs](https://wos.sheet.guide/guides/events/hall-of-chiefs.md) | Themed points | Early game | Spend speedups/resources only on the matching theme day. |
| [Sunfire Castle](https://wos.sheet.guide/guides/battles/sunfire-castle.md) | Castle control | During each SvS | Winning alliance names the State President. |
| Alliance Mobilization | Alliance tasks | Recurring | Grab high-point tasks fast and finish them all. |
| [Alliance battles](https://wos.sheet.guide/guides/battles.md) | Bear Hunt, Crazy Joe, Foundry… | Weekly to monthly | See the Alliance Battles guide. |

Note: Cadence and rules vary by state age and patch. Check the in-game calendar for your state.

## In-depth pages

- [State vs State (SvS)](https://wos.sheet.guide/en/guides/events/state-vs-state.md): 5 themed prep days, then a **12-hour** battle on Saturday. Spend items on their **best-scoring day**. Values change by day; the [prep calculator](https://wos.sheet.guide/tools/svs-calculator.md) plans it for you. Shield up on battle day unless you’re fighting.
- [King of Icefield](https://wos.sheet.guide/en/guides/events/king-of-icefield.md): 7 days, 6 states, one theme per day. Hit every daily milestone for **Medals of Honor**. Medals buy shards for a seasonal hero.
- [Hall of Chiefs](https://wos.sheet.guide/en/guides/events/hall-of-chiefs.md): Your state’s early themed-points event; one theme per day. Runs 5, then 6, then 7 days in later editions. Later replaced by King of Icefield.