I used to be clueless about these terms, too. In short, wilds are flexible symbols that substitute for any other symbol to help form a winning combination. Scatters work differently. They aren't tied to paylines but activate bonus features when enough land anywhere on the reels. I browse games on the LuckParty slot games page. The section description explains all these mechanics quite clearly. I recommend checking it out. For a good starting point, I recommend 9 Jalapeños by Gamzix. It's a simple, dynamic slot with straightforward mechanics, which is perfect for understanding the game's rhythm. Have you tried any of the games you've seen in the lobby yet?