You’re asking about the **”5 Slot Level Bonus”** in Steam’s **Trading Card system**.
Here’s a clear breakdown of what that means:
—
## **What is the “5 Slot Level Bonus”?**
When you **craft a game’s badge** for the first time, you receive:
1. **One set of standard rewards** (profile background, emoticon, possible coupon).
2. **+100 XP** toward your Steam Profile Level.
However, Steam also gives you **extra XP** for **each additional badge level** you craft for that same game — but only up to **Level 5** of that badge.
The **”5 Slot Level Bonus”** refers to the fact that **Levels 1 through 5** each give an **extra +100 XP** beyond the base XP from the first craft.
—
### **XP breakdown per badge level**:
– **Level 1** (first craft): 100 XP
– **Level 2**: +100 XP (total 200 XP for this level-up)
– **Level 3**: +100 XP
– **Level 4**: +100 XP
– **Level 5**: +100 XP
So from Level 1 → Level 5 of a single game badge, you get **100 + 100 + 100 + 100 + 100 = 500 XP total** from that badge.
After Level 5, **no extra XP per level** is given for that badge — you only get the cosmetic items and the +100 XP for the first craft of each further level.
—
## **Why is this important?**
If you want to **level up your Steam Profile efficiently**, focusing on getting **many different game badges to Level 5** is the most XP per card set (since after Level 5, the XP gain drops off).
—
## **Example**:
– Craft **”Game X” badge for the first time** → 100 XP.
– Craft it again to reach **Level 2** → +100 XP.
– Level 3 → +100 XP.
– Level 4 → +100 XP.
– Level 5 → +100 XP.
– **Level 6** → only +100 XP (same as every level after 5).
So the **bonus slots** are really **Levels 2–5**, giving extra incentive to level badges to 5 before moving to another game.
—
**In short:**
The **5 Slot Level Bonus** is an informal term for the **extra 100 XP per level for badge levels 1 through 5**, making it the most XP-efficient point to stop leveling a badge unless you want the cosmetic rewards or foil badge.