EST vs TickLock

Twelve cards sit on the table. Three of them fit together. Your job is to see which three before the clock runs out. EST is a free card game about patterns. The deck has 81 cards, and every card combines a count, a color, a shape, and a fill. Three cards make a set when each trait is the same on all three or different on all three. If one trait splits two-and-one, they are not a set. THREE WAYS TO PLAY • Solo 81: clear the whole deck against the clock. Play a run without hints and your best time goes to the Game Center leaderboard. • Quick 27: the 27 solid cards, nine on the table, for a shorter round. • Duel: race someone on one phone, or on two devices. Play online over Game Center, or offline over Wi-Fi and Bluetooth when you have no signal. On iPad and an open iPhone Duo, four players share one table. LEARN THE RULE A six-step tutorial walks you through the four traits, a set that works, a set that does not, and a practice board. Open it again any time from the rules screen. EXPLORE THE MATH Every card is a point in four-dimensional space and every set is a line. Build a card from its four base-3 coordinates, then see which card completes any pair you pick. MAKE IT YOURS Pick a color theme and a fill style. Turn sound and haptics off when you want quiet. EST has no ads and no subscription, and nothing in the game is locked. There is one optional support purchase. It pays for maintenance and gives you a supporter mark, the Dusk card colors, a warm background setting, and early TestFlight builds when they are available. EST is open source. It is inspired by SET, the card game created by Marsha Falco, but uses its own name, artwork, and code. EST is not affiliated with, sponsored by, or endorsed by the makers of SET. Made for iPhone and iPad by Michell Zappa at Centaur Labs.

TickLock is a tactile puzzle about a brass padlock, a chain of enamel rings and the clips that hold them together. Every turn clicks into place like a dial, and every solved level ends with the padlock snapping open. HOW TO PLAY • Rings hang from the padlock, linked by clips. • Turn a ring until its gap sits on a clip, then let go: the clip springs open. • A ring with no clips left drops away. Drop every ring and the padlock opens. • Geared rings turn together, in opposite directions. • Bolted steel rings can't be grabbed. Turn them through the rings they're geared to. • Each 15° click costs one tick, and every level has a tick budget. Hard levels leave little room, so think before you turn. MADE TO FEEL GOOD • Detents that hold, then snap to the next notch, with layered haptics on iPhone. • 3D mechanical-keyboard keycaps that tilt toward your finger, bottom out and spring back. • Every sound is synthesized: ticks, gear chatter, clip snaps and the final unlock. • Most iPads have no haptic engine, so on iPad the sound and visual detents carry the feel. 60 LEVELS, ALL SOLVABLE • Every level is verified solvable by a solver. • Each level has a par: the fewest ticks the solver found. Can you open the lock at par? • Undo any move, hold Restart to start over, and ask for a hint when you're stuck. ADS AND REMOVE ADS TickLock is free to play and supported by ads. • Occasional full-screen ads: after every few cleared levels and after a long run of undos, with a cooldown in between. • Rewarded ads are always your choice: watch one for another hint (the first hint in each level is free) or for +10 ticks when you run out. • A one-time Remove Ads purchase turns off full-screen ads. Rewarded ads stay available as an optional bonus. • Already bought it? Tap Restore in Settings. ALSO • English and Korean • iPhone and iPad, with a layout made for iPad • No account and no sign-in. Progress and settings stay on your device. • Plays offline. Ads need an internet connection.