Parallel Experiment vs Royal Match

How do Parallel Experiment and Royal Match compare on difficulty, ad pressure, in-app-purchase pressure and what real reviewers say? A side-by-side look, grounded in App Store data.

	Parallel Experiment	Royal Match
Genre	Puzzle	Puzzle
Price	Paid	Free
Difficulty	medium	hard
Ad intensity	none	high
In-app-purchase pressure	none	high
Typical session	long	medium
Rating	3.3 / 5	4.7 / 5
Ratings count	7	3,787,192
Reviews say	What players like Cooperative gameplay requires communication and teamwork Cross-platform multiplayer support Comic book art style with noir atmosphere Common complaints Requires two players with separate copies to play Internet connection and voice communication essential Depends on finding compatible partner to enjoy	What players like Entertaining and addictive gameplay loop Progression system unlocks new castle areas Powerful boosters and collectible rewards Common complaints Levels become impossible without in-app purchases Difficulty spike designed to pressure spending Pay-to-win mechanics targeting spenders with easier levels

Parallel Experiment — A noir-inspired 2-player cooperative escape room puzzle game where separated detectives must communicate to solve mysteries together. (rated medium difficulty, none ad pressure) Royal Match — Match-3 puzzle game where you restore a royal castle by breaking obstacles and combining power-ups to beat challenging levels. (rated hard difficulty, high ad pressure)

Data: Apple App Store, as of 2026-08-24. Last updated 2026-08-24.