The developers own description pretty well sums up what you'll be getting into.
Space Hulk Tactics is a turn-based strategy game set in the Warhammer 40k universe, pitting squads of Space Marine Terminators against swarms of alien Genestealers, aboard massive amalgamations of abandoned starships called Space Hulks.
Based on the classic Games Workshop boardgame, Space Hulk Tactics lets you pick between these two factions in full campaigns, solo vs A.I, or competitive online play. A new card system enhances the turn-based strategy gameplay, ensuring no two games are ever the same and giving you many more tactical options on every turn. With a map creation tool also available, you will never run out of new scenarios to play.
So, at its heart, it's an asymmetrical, turn-based strategy game. One side plays as the Space Marine Terminators, genetically modified supersoldiers that are both heavily armed and heavily armoured. The other side plays as the Genestealers, an alien hive mind that can absorb DNA from others and alter it's structure, evolving into new forms, each one more dangerous and more vicious than the one before.
Although all modes are unlocked from the beginning, if you aren't already familiar with the rules of the board game or find dice rolls, calculating modifiers and percentage chances a bit confusing, I'd HIGHLY recommend doing the campaign first. It'll take you through the ins and outs of the game, introducing new weapons and character classes as you go. You'll get to experience the different environments and their hazards, as well as the enemies and mission types. This gives you a chance to learn the more obscure rules and nuances of the game, and how it all works, before going into a ranked or competitive match.
The Tyranid Genestealers however, play slightly differently. Instead of fielding a squad all at once like the Marines, they instead can spawn a certain amount of "blips" per turn. Blips can vary in strength and their contents can range from 0, used to misdirect, to the most powerful ones that contain 3 Biomorphs. This means you have a constant stream of biomorphs appearing on the board, their numbers swelling every turn. Biomorphs are, on the whole, much faster and more agile than the Terminators. This means they have more AP per character and have no cost for turning. This allows them to move further, and change direction without penalty, making them much more mobile than the Space Marines. In order to be victorious, they must use their higher numbers and AP to surround and overwhelm the Terminators. Being able to spawn reinforcements is the main "pro" of the Genestealer side and can be used to great advantage. Their main "con" however, is that they're melee fighters only, having to risk the marines ranged weaponry to get close enough for the kill.
Genestealers, however, use converted cards to spawn new "blips". The better the converted card, the more Genestealers a blip will contain. They even have a dedicated phase during their turn totally devoted to converting cards and spawning blips. This is how they introduce more biomorphs to the board, allowing them to swell their ranks to even greater numbers.
So, at its heart, this is what battles boil down to. A small, compact team of Marines, slow-moving but with ranged weapons, against a constant stream of fast-moving and agile melee fighters. This back and forth provides the main thrust of the game, and various level modifiers and limits ensure it never gets stale.
Once the campaign is done, you can try the Skirmish mode. Here you can customise your own squad of Blood Angels, Dark Angels, Space Wolves or Ultramarines, as well as your own hive of Genestealers from the Pure, Behemoth, Leviathan and Kraken strains. Loads of visual customisation can be made, with faces, paints, armour pieces, adornments and accessories all having options to choose from. Personalise your squad/swarm before letting them loose on the large collection of different maps and missions, both official and community made. Test yourself against the A.I or against other players. Create your own maps and missions using the map editor and even see how you compare to your friends by checking out the ranking system and online leaderboards.
Space Hulk: Tactics released on 9th October and is available for £34.99/$39.99
Developed by Cyanide Studio
Published by Focus Interactive
Gamertag - jonnydarkfang