Grand by 3 Oaks Gaming is a 5x3, five-line slot built around a classic fruit-machine layout with diamonds, red sevens, bells, BAR symbols and cherries. The game uses a Hold & Win style bonus structure, with the red 7 acting as the Wild and a diamond-themed bonus system linked to jackpot values.
In the demo version, players can play for free and practice before playing for real money. The main bonus feature starts when six or more Diamond bonus symbols land, triggering the Hold & Win bonus game. During this round, the G-R-A-N-D progression mechanic fills across five reels; when a reel is completed, its letter lights up and symbols on that reel are collected into the total win bar. Completing all five letters awards the Grand Jackpot.
A Star Boost symbol can appear in both the base game and bonus round, applying multipliers to visible rewards, including jackpot symbols. The game also includes Mini, Minor and Major jackpot tiers, with a bonus shop option for entry into a Super Bonus that starts with two Boost symbols and improves the chance of further Boost wins.