Alien Invasion: RPG Idle Space vs Block Craft 3D: Building Games

How do Alien Invasion: RPG Idle Space and Block Craft 3D: Building Games 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	Block Craft 3D: Building Games
Genre	Role Playing	Role Playing
Price	Free	Free
Difficulty	medium	easy
Ad intensity	high	high
In-app-purchase pressure	high	high
Typical session	variable	variable
Rating	4.8 / 5	4.7 / 5
Ratings count	126,173	794,341
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 Creative building freedom with endless blocks Fun for casual players and families No survival mode stress—pure creative focus Common complaints Excessive ads every 1–5 minutes interrupt gameplay Paywalls lock popular blocks, animals, and furniture behind gems Misleading ads using Minecraft footage and fake thumbnails

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) Block Craft 3D: Building Games — A free Minecraft-inspired building sandbox where you craft and decorate villages with unlimited creative freedom. (rated easy difficulty, high ad pressure)

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