Reaction Time Test: What's Average and How to Get Faster
What's an average human reaction time? Typical scores, what really affects yours, and an honest look at what practice can and can't improve.
PlayZone Blog
Strategy, history, and deep-dives on free HTML5 browser games, written for players, by players.
Pelmanism: How to Play the Classic Concentration Card Game
Pelmanism, Concentration, Memory — the classic card-matching game: its history, the rules, and the techniques that clear boards in half the moves.
Best Free Online Games for Kids in 2026: A Parent's Guide
How to judge whether a free online game is genuinely safe for your child: a five-point parent's checklist (accounts, chat, ads, dark patterns, data), how PlayZone measures up on each point, and age-appropriate picks for 5-7, 8-10, and 11+.
Digit Span Training: How to Genuinely Improve Your Number Memory
Digit span is the classic measure of short-term number memory. This guide explains the science of chunking, lays out a concrete two-week training plan, and shows how to track real progress without fooling yourself.
How to Improve Your Memory: 10 Free Browser Games That Work
A practical guide to improving memory with free browser games: 10 PlayZone picks grouped by the type of memory they train, a simple daily routine, and an honest summary of what cognitive-training research actually shows.
Free Memory Games for Seniors: Play Online, No Download Needed
Free memory games for seniors that run in the browser with no download, no sign-up, and no cost: 8 picks with large clear visuals, plus honest advice on what daily practice can and cannot do.
The Best Free Browser Games to Play in 2026: Complete Guide
A curated tour of every free HTML5 browser game on PlayZone for 2026 — puzzle, memory, card, arcade and word titles — with strategy tips and the thinking behind each pick.
Do Casual Browser Games Actually Train Your Brain? What the Science Says
What the research actually says about whether casual HTML5 games train the brain, a realistic 20-minute daily routine, and the anti-patterns that waste the practice.