Alien Invasion: RPG Idle Space vs CookieRun: Kingdom

How do Alien Invasion: RPG Idle Space and CookieRun: Kingdom compare on difficulty, ad pressure, in-app-purchase pressure and what real reviewers say? A side-by-side look, grounded in App Store data.

	Alien Invasion: RPG Idle Space	CookieRun: Kingdom
Genre	Role Playing	Role Playing
Price	Free	Free
Difficulty	medium	medium
Ad intensity	high	low
In-app-purchase pressure	high	high
Typical session	variable	variable
Rating	4.8 / 5	4.7 / 5
Ratings count	126,173	351,250
Reviews say	What players like Engaging core loop of evolving and devouring enemies Fun for casual play in short bursts (idle mechanics) Solid gameplay concept and entertaining visuals Common complaints Excessive ads that dominate screen and are difficult to exit Extremely long grinding to progress at reasonable pace High IAP pressure with constant monetization offers	What players like Adorable characters with voice acting Engaging gacha collection mechanics Rich lore and story Common complaints Frequent crashing and login kicks Heavy storage usage slows device down Game becomes grindy/boring after collecting main cookies

Alien Invasion: RPG Idle Space — Evolve your alien by devouring humans and defeating bosses in this idle RPG, but prepare for relentless ads and grinding. (rated medium difficulty, high ad pressure) CookieRun: Kingdom — Lead a kingdom of adorable voiced cookies through strategy-filled battles and gacha collection in this cozy RPG. (rated medium difficulty, low ad pressure)

Data: Apple App Store, as of 2026-07-10. Last updated 2026-07-10.