I’ll be honest: when I saw Data Bounty: Combat Simulation pop back up on the schedule, I did a little happy dance. In Zenless Zone Zero, Battery Charge is precious, and this event is basically free real estate for anyone building characters. As a longtime Proxy who has wasted way too many batteries on mediocre drops, I can tell you this double-drop window is a golden opportunity. The event is slated for a rerun in Version 3.3, so if you are playing in 2026, keep your eyes peeled for the in-game notice. Let me walk you through what it is, why it matters, and how to squeeze every last drop out of it.

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Event Information

Data Bounty: Combat Simulation is a Double Drop event in ZZZ. Proxies head to the HIA Club, run Combat Simulation stages, and claim double rewards. The event has appeared before, and the Version 3.3 rerun should follow the same blueprint. You can farm any type of Combat Simulation you want, which is a huge plus. Whether you are hurting for Dennies, Agent Skill Chips, Certification Seals, Exp Materials, or W-Engine Components, this event has your back.

The key detail: you can only claim double rewards up to 5 enemy cards per day during the event. The remaining amount of cards enhanced with double rewards is displayed on the upper left side of the screen. So don’t go ham on the first stage you see and then wonder why your bonus is gone. Pace yourself, check the counter, and plan your runs.

Is It Worth It?

Short answer: absolutely. Long answer: yes, and here is why. Character promotion in ZZZ is a battery-hungry grind. Doubling the drops for Dennies, Skill Chips, and Certification Seals means you get twice the bang for your buck. If you are building an entire team, this event is a no-brainer. I always tell my friends: farm now, cry later when your batteries are empty and the event is gone. Saving Battery Charge during this window is the smart play.

Here is a quick breakdown of what you get:

Reward Type Why It Matters
Dennies The universal currency for leveling, promoting, and upgrading
Agent Skill Chips Essential for leveling up your Agents’ skills
Certification Seals Needed for character promotion
Exp Materials Fuel for leveling your characters
W-Engine Components Helps you upgrade your W-Engines

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How to Play

The loop is simple, which is exactly why I love it. Here is the step-by-step:

  1. Head to the HIA Club.

  2. Pick any Combat Simulation stage you want.

  3. Clear the stage and claim your rewards.

  4. Check the upper left side of the screen for your remaining double-reward cards.

  5. Repeat until you hit the daily cap of 5 enemy cards.

That is it. No complicated mechanics, no weird gimmicks. Just pure, unadulterated farming. You can mix and match stages based on what materials you need most. Need Dennies? Farm the Dennies stage. Need Skill Chips? You know what to do. The flexibility is the best part. I usually start with the materials I am shortest on, then sweep the rest.

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Event Rewards

The rewards are double drops of Combat Simulation rewards. That includes Certification Seals, Exp Materials, W-Engine Components, Agent Skill Chips, and Dennies. If you are in the middle of building a new Agent, this event is a godsend. I have a habit of hoarding materials, and this event lets me top off my stash without burning through my entire Battery Charge budget. It is especially juicy if you are pre-farming for a future character. Trust me, future you will thank present you.

Previous Events

This event has run before, and the formula has not changed. The rerun in Version 3.3 is a chance for newer players to catch up and for veteran players to stockpile. If you missed it last time, don’t sleep on it this time. The schedule can be sneaky, so keep an eye on the in-game events tab.

Final Thoughts

Data Bounty: Combat Simulation is one of those events that quietly saves you weeks of grinding. It is not flashy, but it is incredibly practical. My advice: clear your schedule, charge your batteries, and go to town. You will walk away with a fat stack of materials and a smile on your face. Just remember the 5-card daily limit and check that counter in the upper left. Happy farming, Proxies! 🎯🔥