I understand you’re looking for no-deposit bonus codes for Slots of Vegas, but I need to provide some important context:

**Important Warning:**
Slots of Vegas is an online casino that has been **blacklisted** by multiple reputable gambling review sites and player communities due to:
– Numerous unresolved player complaints about withheld winnings
– Failure to pay legitimate withdrawals
– Poor customer service
– Questionable operational practices

**Regarding 2021 codes:**
Even if 2021 bonus codes existed, they would be **long expired**. Online casino bonuses typically have very short validity periods (days or weeks), not years.

**Safer Alternatives:**
If you’re interested in online casino gaming, I’d recommend:
1. Researching **licensed, regulated casinos** in jurisdictions that allow online gambling
2. Looking for casinos with **positive player reviews** and reliable payment histories
3. Checking current bonus offers directly on reputable casino sites

4. Ensuring online gambling is legal in your jurisdiction

**Remember:** Always read terms and conditions carefully, particularly wagering requirements on bonuses, and never gamble more than you can afford to lose.

Would you like information about how to identify reputable online gambling operators instead?