The 5 Best iPhone Games of the Month

Every week, TIME rounds up our favorite iPhone games of the past few days. Here are the best of the best for March, from mind-straining puzzle games to mad-dash runners.

TouchTone

This is one of the most fascinating games for iPhone at the moment. A lot like the celebrated Papers Please, TouchTone is about cracking a code and finding patterns with an eye for red flags. The game presents you with puzzles you must break in order to find important messages pertaining to national security. It’s a true, tough challenge that feels a bit like propaganda, but if you can get over that part of it, TouchTone will keep you occupied for hours.

TouchTone is $2.99 in the App Store

Spring Ninja

Spring Ninja is an adorable runner-type game in which you control a ninja with springs beneath its feet, jumping from column to column in order to beat your high score. The challenge is to jump from one platform to the next without falling off or overshooting. Be prepared to invest lots of practice time to master the art of spotting your next landing.

Spring Ninja is free in the App Store

Heartbeats

A game that feels like a Gogol short story, Heartbeats is a puzzling little challenge that will take you plenty of time to crack. The appeal of this game is largely in the way it’s designed — as a series of scrawled, eerie doodles. The game tells a story, too: you must solve the puzzles one man left behind as his life’s legacy to learn more about him. Each level presents a unique task that will make you work hard and think differently. A strange game that should make the top of the charts in little time.

Heartbeats is free in the App Store

Lastronaut

An endless runner game with an arcade backdrop, Lastronaut tells the story of a world overrun by a mechanical army that must be destroyed. Jump, run, dodge, and attack wave after wave of enemy forces as you run through the map. Pick up robot weapons and different gear in order to last as long as you possibly can.

Lastronaut is free in the App Store

Under the Sun

In Under the Sun, the goal is to lead your character through a series of puzzle-based desert island maps. In this 3D puzzle game, try to navigate natural obstacles such as trees and rocks in order to get to reach your fire before it gets dark. But every move you make alters the map just a bit. Thankfully, you can tinker with time and go backwards if you make a mistake.

Under the Sun is free in the App Store