Crystal Keeper

Crystal Keeper is a fantasy tower defense with a twist: you don't just build, you fight!

Monsters swarm the sacred crystal from every side. Command your hero, build and merge towers around the crystal, pick a new upgrade every time you level up, and face a giant boss every 5 waves. If the crystal falls, it's over!

HOW IT PLAYS

- Fight and build at once. Your hero shoots automatically while you move around, collect gold and build towers wherever you need them.

- Merge your towers. Two identical towers merge into a stronger one (3 levels). No free slot left? Upgrade with gold instead.

- Level up, choose an upgrade. Pick 1 of 3 random upgrades each level: more damage, twin bolts, orbiting blades, holy nova, cheaper towers and more.

- A boss every 5 waves, with its own minions.

- Repair on the go. Stand next to the crystal or a damaged tower to heal it.

FEATURES

- 3 heroes with their own stats, attack and spell: Eldrin the Mage, Lyra the Ranger and Sir Aldric the Knight.

- 6 towers with 3 levels each: Archer, Pyre, Frost, Storm, Venom and Cannon.

- 4 worlds to unlock, each with its own monsters and boss: Whispering Forest, Frostpeak, Sunscorch Desert and Emberforge.

- 15 monster types: archers that shoot from afar, shamans that heal their allies, shielded orcs, splitting lava slimes and more.

- Wave events: Blood Moon, Gold Rush, Meteor Shower and Healing Rain keep every game different.

- Permanent progression: earn shards after every run to spend in the Forge, unlock heroes and collect crystal skins.

- 12 achievements and daily missions (3 new ones every day).

- Hall of fame for your best runs, with your own name.

- Plays in English and French, with a guided tutorial.

- Works with keyboard, mouse and touch screens: tablet and phone friendly (landscape).

CONTROLS

- Move: WASD or arrow keys (on touch screens: drag a finger on the left of the screen)

- Build: click or tap a glowing slot, choose the tower with keys 1 to 6 or the bar at the bottom

- Merge or upgrade: click a tower, then an identical one (or the Upgrade button, key U)

- Hero spell: E (or the round button)

- Sell a tower: X

- Call the next wave early: Space

- Pause: P

- Mute: M

Progress is saved in your browser. Have fun, keeper!