If you want to read an honest review before planning on purchasing this game, take your time to read this:For starters, KR: Vengeance is the fourth instalment of the KR Series, this time playing as Vez’nan’s general in his quest to conquer all the kingdoms after awoken from his long slumber. There are a good variety of new and unique towers (unlocked while playing) to choose from, each equipped with special abilities and ready to take on the do-gooders. There are also (for the first time in the KR Series), premium towers to choose from as well. There are three heroes (unlocked while playing) to choose from: one melee, and two ranged, each with their own special abilities. The rest of the heroes are premium.PROS: Besides the brand new twist or theme of this game, it’s still KR to the core. The huge roster of towers offer a larger variety of ways to set up a solid defence given enough time and practice. In the previous KR games, you can only equip yourself with four different towers, but now you can have five different towers to use at once. This means you can use two of the same type of tower, despite both of them being different from each other, offering more variety to your strategy. Enemies are also plentiful in variety, each with their own set of strengths and weaknesses. The boss fights were great and unique in their own way, particularly the final boss fight. The landscape, visuals, and effects in the game are nice and interactive, giving a comical vibe. It’s still fun and goofy when playing casual, while providing a decent challenge for strategists. The story illustrated through comics was pretty good and funny at times. Lastly, there are a lot of Easter eggs and references of other games or movies to discover, just like in the previous KR games. Try to find them all!CONS: First and foremost, the price of this game. To be honest and for what it’s worth, it’s not that much of a bargain if you’re paying $6.99 CDN for a game and you still have to pay even more (approximately $60+ CDN) to fully unlock the game (all premium towers and heroes). This too goes for all of the KR games and Iron Marines. Everyone would prefer paying a lower price, given the amount of premium content this game (and the other games) has to offer. That way, the pricing is more fair and it makes the games more tolerable to play. Second, for those who want to practice with their strategy more, Endless mode is not available in this game. It’s one of the features that I really missed while playing this game. I’m forced to play the previous KR games to play Endless mode instead. Hopefully it’ll be added back in an update soon. Third, if you want to read some information about your towers and the enemies or bosses you’ve encountered, the Encyclopedia has seemingly disappeared into the void. I’ve looked everywhere but it’s nowhere to be found. Hopefully it’ll be added back in an update soon as well. Lastly, the start wave button (formerly on the bottom-right corner of the screen when playing KR 1 and 2), is not present (same goes when playing KR 3). I missed being able to instantly start a wave with one tap instead of two.Overall in my opinion, it’s not a bad game if you know how to properly plan your strategy with the towers and heroes (non-premium that is) you have at your disposal, as it’s easy to complete this game without using any IAPs. You only purchase premium content if you desperately want to have an edge, or have a ton of money to spare. Nothing else. For those who are not strategists and are looking for a nice fairly-priced casual game however, you will find this game (and the rest of the KR games, not to mention Iron Marines) a bit difficult to tolerate because of the price for the base game and premium content. With that in mind, it’s a fair argument for you to look for another game similar to this instead, even for dedicated KR fans. But if you really want to play this game, don’t use any IAPs as you don’t need premium towers and heroes to beat the game, and practice or get familiar with your strategy. Do both, and you’ll be fine playing this game. You have Vez’nan’s support on that. Maybe.