Missile Command Delta is a big departure from the original game that Atari fans are familiar with, and while we're sure purists won't enjoy the drastic changes, this modern spin brings the concept forward in a refreshing and imaginative way.

A group of adventurous teenagers plans to spend the night in a creepy, disused bunker, only to discover it's not quite as abandoned as they thought. Thus begins a game of two halves. You'll spend some of your time exploring the surprising depths of the bunker in first-person, solving puzzles and conversing with your pals; the rest of the game has you defending against incoming missiles, in both training scenarios and what seems like real strikes.

Unlike the original game, though, these sequences are strategic, turn-based challenges, all about calculated explosions and making the most of your inventory.

A variety of missile types, shields, and more give you lots of options as you progress, but enemy firepower has different attributes too, like green ones that can breeze through explosions.

These missile-commanding missions are good fun, and grow deceptively complex later on in the game. Sometimes it can be hard to parse all the missile trajectories, and occasionally it can be a bit trial-and-error, but overall it's a strong variation on the 1980 original.

The story feels a bit contrived but provides a decent enough framework, testing the group's friendship as they're thrust into an intense situation. The bunker itself is a highlight; it's a very intriguing place to be. It's full of locked doors, cryptic codes, and strange puzzles concealing some fun mysteries. Throw in dialogue choices that'll lead to different endings, and you have a real melting pot of ideas and genres.

We did encounter a couple of bugs here and there, and it occasionally dropped a frame, but by and large it runs well and looks good, though some may not be into the stylised, quite flat look.

It may sound a bit all over the place, but in practice this is a nicely paced and thoughtfully done game that manages to draw a lot from an old school Atari classic.