Which psychological pricing strategy is most commonly used in gaming platforms to increase impulse purchases of cosmetic items and DLC?

In the world of gaming and virtual worlds, product marketing strategies leverage consumer psychology to drive in-game and platform purchases. Understanding these tactics can help gamers make more informed decisions about their spending habits. This trivia question explores how gaming platforms use psychological principles to increase impulse purchases in their virtual marketplaces and in-game stores.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Charm pricing (ending prices with .99 or .95, like 9.99 instead of 10)
Virtual currency conversion (obscuring real costs by using gems, coins, or points that don't directly convert to real currency values)
Bundling (offering multiple items together at a slight discount compared to individual purchases)
Limited-time countdown timers (showing time remaining to purchase an item)