GravityFour

Online website

About this game

GravityFour is an offline Four-in-a-Row game built for short tactical matches and local play.

Choose a single-player match against a rule-based opponent or pass the device for a same-device duel. The board uses a classic 7-column by 6-row gravity layout, so every piece drops to the lowest open slot in its column.

The game includes three solo difficulty levels. Easy focuses on immediate wins and simple blocks. Standard handles defensive responses and fork pressure. Advanced uses deeper board evaluation and center control for a stronger local challenge.

Practice mode includes 36 tactical drills across three themes: win in one move, block the only threat, and create a double threat. Each drill tracks completion and best solve turns so progress stays visible.

An interactive tutorial explains dropping pieces, vertical and diagonal lines, and basic attack and defense ideas. A statistics page records match results, fastest wins, practice progress, and saved unfinished sessions.

The game also provides pause, restart, forfeit, undo for casual solo matches, and replay for finished sessions. All core features work offline without accounts, ads, chat, payments, or online matchmaking.