Let me start by saying that Bad North is one of those 'easy to learn, difficult to master' games. The goal is simple: use your soldiers to defend your island from the invading vikings.
Sounds easy, right? Well, the first few islands are, but then once you have come across the different enemy troops, each with their own strengths and weaknesses, you realise there is osme depth to Bad North. You have access to three different types of soldiers: warriors, archers and pikemen. Like with the enemy, each of these soldier types have their own strengths and wekeness, such as the pikemen are great at holding a gap but cannot attack whilst moving. Your limited choice in troops, combined with the varied enemey troops, are what helps create the challenge for the player.

Bad North has a high level of replayability as each campaign has a randomly generated set of islands, which can have a huge impact on your game. I found that I was better at defending islands that high ground for my archers and narrow paths that my pikemen could defend but I struggle with the flatter islands, taht required more manoeuvrable troops to defend them.

Overall, I really enjoyed playing Bad North. Its simplistic visuals and gameplay hide a strategy roguelike game taht will offer a decent challenge for strategy fans.