Well I'm not the best person to ask about the current game. I use to play with my brother like 20 years ago. Basically it's a table top strategy game where one player battles another each bringing a army type of their own. You can bring a variety of units and army types and can customize your army list as well as customize the models you use. If you want to see examples of what play is like check out the Mini Wargaming U tube channel that shows 40k games and you can get a sense of what play and other related stuff is like. Mainly I always liked the game because it combines strategy with making and using cool models to play the game. I also really enjoyed the mythos/Fluff the game makers developed for the game so it has a large and colorful backstory with lots and lots of fun gear and characters.