The King is Watching has 6 kings you can unlock and the unlock process is pretty straightforward. All you need are Town Denarii and Ascension Crystals. Each King has their own set of unlock requirements of Denarii and Ascension Crystals.

King Unlock Requirements in The King is Watching

KingTown Denarii RequiredAscension Crystals Required
King Leonid101
King Brezhnius201
King Leo the Wise251
King Saladin301
King Spellus401
King Alucard501

Victory against the enemy waves and bosses earns you Town Denarii, while Ascension Crystals drop whenever you clear an elevated Threat Level for the first time or nail a challenge the game throws your way.

Gather the Denarii and the Crystals, and you can head to the main menu to release a new King into the fray. Each King arrives with his own set of active and passive powers.

You can deepen those powers by posting stellar challenge scores and by steadily advancing the King’s Quest path in the upgrade building. Keep your trade routes open and the coffers prudent, and the throne will swell with new strength.

In addition to 6 Kings, there are 28 advisors you can unlock. Moreover, each King comes with their own Active and Passive Abilities.

Each King’s Abilities in The King is Watching

KingAbility 1Ability 2Ability 3
King SpellusConjure Simple Spell:
Get a random simple spell.

Cooldown: 150 Seconds
Cost: 25 Water
Conjure Powerful Spell: Get a random powerful spell.

Cooldown: 170 Seconds
Cost: 20 Fuel
Self-Improvement: Generate 1 more crystal over time.

Cooldown: 120 Seconds
Cost: 50 Gold
King LeonidBoost Unit HP: Adds 100 HP to each player unit on the battlefield.

Cooldown: 180 Seconds
Cost: 10 Meat
Unlimited Gaze: All buildings work for 10 seconds regardless of their current gaze position.

Cooldown: 200 Seconds
Cost: 15 Wine
Unlimited Wrath: Gives Wrath to all player units for 6 seconds.

Cooldown: 200 Seconds
Cost: 10 Wine
King AlucardSecond Life:
Resurrect up to 2 dead bodies (+1 per upgrade) in an area to fight for you, convert un-raised bodies to 2 wine (+1 per upgrade)

Cooldown: 120 Seconds
Cost: 25 Water
A Better You:
Upgrade up to 2 friendly undead units in an area to the next level (up to ability level)

Cooldown: 150 Seconds
Cost: 30 Flour
Forbidden Techniques:
Improves the first 2 abilities. Second Life allowed you to raise more units, while Better You allows you to upgrade units even further.

Cooldown: 280 Seconds
Cost: 100 Gold
King Leo the WiseBlueprint Sacrifice:
Turn selected blueprint into 1 permanent morale (+1 morale per upgrade) and a choice of 40 resources (+10 resources per upgrade)

Cooldown: 1 Second
Extra Draft:
Summon a unit to fight for you (unit type is upgraded)

Cooldown: 150 Seconds
Refinement:
Improves the first 2 abilities Blueprint.
Blueprint Sacrifice provides more morale and resources, while Extra Draft provides better units.

Cooldown: 30 Seconds

Cost: 100 Wheat and 100 Wood
King SaladinBlueprint:
Get a random blueprint.

Cooldown: 150 Seconds
Cost: 30 Water
Summon Standard Unit:
Summon a random standard unit (within unit limit)

Cooldown: 80 Seconds
Cost: 15 Wheat
Summon Strong Unit: Summon a random strong unit (within unit limit)

Cooldown: 120 Seconds
Cost: 5 Meat
King BrezhniusHeal:
Heal 3 random damaged units for 500 HP.

Cooldown: 150 Seconds
Cost: 10 Water
Aggro:
Aggro all enemies on units in a selected area.

Cooldown: 120 Seconds
Persuasion:
Selected friendly units explode upon death, damage scales according to how long the unit has been carrying a charge, max 2 units per cast.

Cooldown: 50 Seconds
Cost: 20 Crystals
King BaldwinRaise Militia: Summon three peasants.

Cooldown: 100 Seconds
Cost: 30 Water
Boost Production:
Increase all buildings’ production by 40% for 10 seconds.

Cooldown: 250 Seconds
Cost: 30 Gold
Request Tribute: Get 90 resources of your choice.

Cooldown: 250 Seconds
Cost: 30 Gold

The aforementioned are all Active Abilities, but you can unlock Passives too through the King’s Quest upgrade path.