About Lock & Spark

Lock & Spark is a small collection of free puzzle and logic games that you play in your browser, on a phone or a computer. There is nothing to install, and no purchase is ever required to enjoy the games.

The games

Every game has the same idea: a short, satisfying puzzle you can finish in a few minutes, with something new to try each day.

• Vaults – solve logic locks to open vaults, collect relics and build a team for the Gauntlet.
• Rune Slide – slide and swap runes to clear each board.
• Firewall – drag your turret, shoot down bugs and malware, and pick an upgrade after every wave.
• Spell Hive – find words in a honeycomb of letters.
• Spark Stack – stack blocks as precisely as you can.
• Hunt – find the bug hiding in every colour zone using logic alone.
• Spark Boxes – dots and boxes on squares, triangles and octagons, against a bot or a friend.
• Sort Lab – pour coloured liquid into tubes, time your taps on a ring road, and slide blocks to free the ferret.
• Bug Lanes – place defenders along five lanes to stop the bugs before they reach your core.
• Whispers of Wonderland (beta) – a minesweeper-style delve through the fog.
• Spark Clicker – the original: tap, build generators and solve locks for surges.

Guides

Alongside the games we publish written guides and strategy articles: how scoring works in Vaults, what every defender and bug in Bug Lanes does, the deduction techniques that solve Hunt, and more. They are written from how the games actually work, so the numbers match what you will see in play.

One account, every game

You do not need to sign up. An account is created for you the first time you play, and your progress, daily streak and avatar follow you between all of the games. A recovery code on the home page lets you continue on another device.

Play together

Players can join guilds, send each other lives, and compare scores on daily leaderboards. Names are filtered and guilds can be reported, because we want this to be a friendly place for everyone.

How the games are paid for

The games are free. They are supported by advertising and by optional purchases such as ad-free play, VIP membership and Gems. Ads are never required to progress, and rewarded ads are always your choice. See How to play and our privacy page for details.

Who makes it

Lock & Spark is made and run by a small independent team in Sydney, Australia. Questions, bug reports and ideas are welcome on the contact page.