We've combed through the Google Play Store for the very best strategy games out there, then weeded out anything with a pesky "Offers in-app purchases" label. Here you'll find our top ten premium Android strategy titles, including turn-based combat, real-time strategy types. You won't be upsold on features or levels in any of these, nor will you have to deal with freemium-style currency or any of that nonsense. If you're in the market for more, we've got top ten lists for action games without IAPs, best IAP-less RPGs, and best Android games without IAPs across all genres. Fans of pure, unadulterated strategy gaming will not want to miss this round-up.

XCOM: Enemy Unknown

XCOM is a mix of strategic turn-based combat and long-term base-building. Players engage in international missions to clear out alien threats in an attempt to keep global panic to a minimum. These combat missions require the intelligent usage of cover, mobility, and specialized skills. Keeping your squad alive isn't just a matter of making it through a level, since once a member is dead, they're gone for good and you have to train a rookie from scratch to replace them. Though players earn rewards for completing missions, they have to stay in the good books of countries around the world in order to the keep funding coming in. and continue researching new technologies like weapons, jets, infrastructure, and lots more. XCOM is a mature, balanced strategy game with no in-app purchases, a great premise, and some truly polished graphics. $9.99 - Download now

Anomaly 2

Anomaly 2 brings the same reverse-tower-defense mechanics as the original, but the updated graphics, new transforming tanks, and multiplayer mode make this sequel more than adequate. In the multiplayer mode, one player gets to be in charge of the alien defense, complete with consumable special abilities. If you're looking for loads of tactical depth and eye candy to boot, Anomaly 2 delivers. $4.99 - Download now

Star Command

Star Command is retro-styled sci-fi game with incredibly funny writing. Throughout Star Command, you hire new crew members with varying skills in science, engineering, and combat. Over time, you put them on missions to improve their skills and unlock new perks, as well as upgrade the ship's various rooms. Completing missions requires some light role-playing through various dialog options, tactical combat when your ship gets boarded, and finely-honed reflex-driven mini-games for ship-to-ship combat. A token-based crafting system forces you to make meaningful decisions about the rooms you upgrade and crew you hire. All in all, Star Command elegantly mixes strategy and sim with a healthy dose of tongue-in-cheek humor. $2.99 - Download now

Autumn Dynasty

Autumn Dynasty is a finger-friendly real-time strategy game set in feudal China. Players direct a varied force to victory across a wide range of terrain types in a single-player campaign or or skirmish mode. There's a full tech tree to research and buildings to construct. Commands are made with a variety of gestures, each leaving a stylish calligraphic trail (though standard button input is included for those who want more traditional controls as well). Autumn Dynasty is the best traditional real-time strategy game you'll find on mobile. $4.99 - Download now

Rymkapsel

Rymdkapsel combines Tetris-style base building and real-time strategy resource management in a minimalist and finger-friendly package. Players have to build residences, feed the populace, and expand towards objectives, all while fending off wave after wave of progressively more difficult enemy air strikes. Rymdkapsel is decidedly unique in both its art and play style. Rymkapsel prunes away all of the extras in real-time strategy games and leaves players with a clean, pure experience. $3.99 - Download now

Great Little War Game 2

Great Little War Game 2 is a turn-based military strategy game where players have to take out the opposing general. To that end, you need to take to land, sea, and air with various trained units while using the terrain to your advantage. Battle points gathered from successfully completing each of the 60 missions are spent on unlocking and upgrading units. Get into Great Little War Game 2 for some classic military gameplay with a goofy spin. $2.99 - Download now

First Strike

Players in First Strike start as a major super power nestled in their respective corner of the globe. Slowly, players expand into neighboring countries and begin researching recon, efficiency, missile, and national military technologies. Then the stockpiling begins. Every country can store a handful of intercontinental ballistic missiles, and faster, short-range cruise missiles for defensive purposes. Research continues along in the background, but it doesn't take long before one player or another pushes the red button to launch the first nuke. From there, it's all-out war. First Strike mixes a bleak, brutal theme with highly polished graphics and strong strategic gameplay. $3.99 - Download now

Worms 2: Armageddon

Worms 2 is the touch-friendly evolution of a classic turn-based strategic shooter. Players build a team of squeaky-voiced invertebrates armed to the teeth in order to blast their opponents to smithereens. To do so, they'll use the unlikeliest of weaponry, including the Old Lady, the Homing Pigeon, the Concrete Donkey, and, of course, The Holy Hand Grenade. The implements are deployed with cold calculation across randomly-generated, destructible stages. Online and local multiplayer are both supported for a real challenge. If you're able to stomach some IAPs, Worms 3 is also available with updated graphics. For some truly ridiculous warfare, get Worms 2. $4.99 - Download now

Eufloria HD

Eufloria is a deceptively calming, abstract strategy game where players have to send swarms of spores between asteroids to germinate them and produce resource-bearing trees. This gets tricky once you encounter other life forms that are aiming to do the same. There are 25 levels in story mode, plus one-off skirmish modes to keep the fun coming after that. Levels are procedurally generated, so no two matches will be the same. If you'd like something more laid back, there's a relaxed mode, while the dark matter mode makes things considerably more challenging. Though the music is bound to make you nod off at least a little, stay on your toes; Eufloria requires careful planning and attention throughout. $3.99 - Download now Frozen Synapse