Island Delta is an upcoming iOS sci-fi stealth game that has shades of Thief

Island Delta has a very pleasant cartoonish look to it. It's this that caught my eye initially but it was the isometric espionage action that held my interest.

It's an upcoming iOS game currently being built by Finnish brothers Sami and Timo Kuronen.

Being sci-fi, Island Delta is primarily cool blues and shiny metallics. You're a master thief sent to infiltrate various well-guarded facilities.

You specialise in being agile and sneaky to get past guards and surveillance technology. As such, you'll be using a rope gun to reach areas and trying to avoid or disable enemies to remain unseen.

The rope gun in particular reminds me of the rope arrows in Thief that were used to take your sneaking to a greater height.

While timing is key in those action-based scenarios, Island Delta introduces some puzzle elements, too. You'll have to hack into terminals and pick locks to get around at times.

The levels have multiple solutions available that you'll be able to experiment with.

Perhaps you'll turn security bots on guards, fill rooms with sleeping gas, or distract enemies with by setting off a distant alarm.

Island Delta is right in the rut of mid-development right now but it seems worth keeping an eye on. You can do so by checking out its development log.