Make a new Blueprint. So far we’ve made a character blueprint and a GameMode blueprint. This one will be an Actor Blueprint. Actor Blueprints are not controlled. They are typically static objects placed around the level.

Here we’ll make a token. When the player overlaps with it, the player’s score goes up by one, particles are emitted in the location and the token disappears. Also, right before it goes away, it checks what the player’s score is. If the score is 10 the text YOU WIN is printed to the screen.

In the BP Viewport I first added a Sphere collision. Then I added a regular Sphere and put it inside the collision as you can see below.

In the Event Graph tab I added an event for if anything collides with this Blueprint. Below is the code with comments.

Then you can place as many of these tokens around your level as you like.

For the Particle Emitter – feel free to tweak it all you want. But at the very least, under “Required” you need to give it a material. You can just use one of the emissive materials you’ve already made or make a new one: