Published: March 18, 2026 
Ragnarok Infinite is one of the biggest additions in Universal Tower Defense Update 1.5. It's a brand new endless game mode that works differently from anything else in the game. If you want to earn God Coins, grab event shop rewards, or get your hands on the secret unit Qin Shi Huang, this is the mode you need to be playing. Here is the complete Universal Tower Defense Ragnarok Infinite Guide.
What is Universal Tower Defense Ragnarok Infinite?
The lore behind this game mode is simple but cool. The Gods have challenged humanity to a tournament of power to decide whether humans should continue to exist. You're fighting on humanity's side, holding off wave after wave of divine enemies before the Gods themselves show up to finish the job.
It's an endless wave-based mode added in Update 1.5: Record of Ragnarok. Unlike the regular game where you bring your own units, Ragnarok Infinite gives you a preset team to work with. The mode runs for up to 2 hours, and the further you go, the better your rewards get.
Universal Tower Defense Ragnarok Infinite Guide
You can find Ragnarok Infinite through the Events tab in the main menu or through the portal in the middle of the lobby map. The portal appears after each Ragnarok Live Event ends, so keep an eye on when those go live. Once you're in, the host selects a Valkyrie and the run begins.
How Universal Tower Defense Ragnarok Infinite Works
Once you're inside, enemies come in waves and your goal is to survive as long as possible. Three key mechanics define how each run plays out.
The Valkyrie System
At the very start of each match, the host chooses one of 5 Valkyries. Each Valkyrie has her own unique passive ability that benefits your whole team throughout the run. On top of that, each Valkyrie has purchasable upgrades you can unlock as the run goes on using your in-game currency.
The God Boss Every 10 Waves
Every 10 waves, a different God shows up as a boss. Each God applies a Global Debuff to all your units, making the next stretch of waves harder to deal with. The debuffs stack up the deeper you go, so the late game gets genuinely challenging. Pay attention to which God is coming so you can prepare your positioning before they arrive.
The Buffer Cards
Every few waves, the game gives you a choice between a pool of buff cards. These cards give your team helpful boosts when things get tough. You pick one from the options shown, so think carefully about what your team needs most in that moment. Some cards might boost damage, others might help with cooldowns or range.
How to Get and Use God Coins
God Coins are the exclusive currency you earn by playing Ragnarok Infinite. This is the only place in the game where you can get them. If you want to buy anything from the Update 1.5 event shop, you need to be running this mode regularly.
How to Get Qin Shi Huang (First Emperor) in Ragnarok Infinite
Tin Xiang is the secret unit tied to Ragnarok Infinite and easily one of the most exciting additions in Update 1.5. Here's how the drop works:
- Starting from around wave 40 to wave 50, each wave gives you a 5% chance to receive Qin Shi Huang.
- That chance applies to every single wave in that range, so the longer you hold on, the more rolls you get at it.
It's not guaranteed, but 5% per wave from wave 40 onward is a solid chance if you can survive long enough. Focus on staying alive and let the drops come naturally.
Tips for Surviving Longer in Ragnarok Infinite
Getting to wave 40 and beyond takes some effort. Here are a few things that will help you last longer:
- Grab the buffer cards early. The boost stacks over time and helps a lot later.
- When a boss shows up every 10 waves, focus on it right away. If you ignore it, the debuffs will build up and make things harder.
- You can’t change your team, so placement is key. Take a moment at the start to position units where they can cover the most area.
- This mode takes time, up to 2 hours. Only start if you’re free, since the important Qin Shi Huang waves come later.
The more you play Universal Tower Defense Ragnarok Infinite, the better you'll get at reading the waves and managing your preset team. Good luck, and if you need more tips, codes, and game information, check out our Universal Tower Defense wiki.
