Blade Master Idle Clicker is an incremental game in which a player helps a weapons dealer of the Middle Ages increase their income and improve the look of their shop enough to become the wealthiest and most famous tradesman in the area. The only way for the player to build up the dealer's business and wealth is by clicking the game screen repeatedly, earning money and setting up automated tools. If the player succeeds with these tasks, they broaden the dealer's inventory, improve his fame and earn even more money, which makes it possible for the player to keep building the dealer's growing weapons empire.
The game starts with the dealer in a tent on a two-tone green grassy area. The dealer sells knives. Over time, the player expands the dealer's inventory to include wooden swords, lassos, swords and warrior helmets. They level up these weapons and attract additional customers with golden coins. They also upgrade the speed at which buyers travel to the tent, the speed at which each customer buys an item, the spawn speed and the maximum buyer count.
The player also receives several extra money-making and speed-up opportunities. If the player decides to watch advertisements, they receive free gold. They also receive multipliers to increase their profits and the buyers' speed.
Blade Master Idle Clicker doesn't stop with these basic clicker features. It offers a Prestige Shop where the player can increase the dealer's fame. That said, to earn the purple crystals needed to buy items in this shop, the player must give up their entire balance and essentially start over from the beginning in terms of the dealer's balance, available weapons, level-ups and automated tools.