Data Bounty: Combat Simulation Event Guide

## Maximize Gains: Combat Simulation Event Guide for Zenless Zone ZeroThe **Data Bounty: Combat Simulation** event has arrived in **Zenless Zone Zero**, providing a fantastic opportunity to accelerate your account progress. For a limited time, participants receive double the typical rewards for every successful Combat Simulation run. Accessible to anyone who has finished Chapter 1, this event is the perfect moment to stockpile essential upgrade materials. This guide provides everything you need to know about the event schedule, daily buffs, and how to farm with maximum efficiency.For the most up-to-date **Zenless Zone Zero** guides and news, head over to the [ZZZ game hub at GenshinBuilds](https://genshin-builds.com/zenless).### Event Schedule and MechanicsThe event is active from **July 22, 2026, at 04:00** until **July 27, 2026, at 03:59 (server time)**. There is no complicated setup; simply navigate to the Combat Simulation menu and complete your chosen challenges. The double-drop bonus is automatically applied to every run throughout the event period.* **Prerequisites:** Completion of Chapter 1, “Cat’s Lost & Found.”* **Duration:** Five days total, refreshing daily at 04:00.* **Stamina Cost:** Standard 20 Battery per run; no additional costs apply.### Daily Buffed CardsEvery day at 04:00, five specific enemy cards will receive a combat buff. While these buffs can influence the difficulty, **the double reward applies to every single card, regardless of whether it is buffed.** Feel free to choose the stages you can clear the fastest to optimize your time.### Farming Strategies for Success**1. Focus on Your Needs**Since battery is your primary constraint, prioritize stages containing resources you are currently short on—whether that is Character EXP, skill chips, or weapon materials. The bonus essentially cuts your battery-to-reward cost in half.**2. Optimizing Battery Consumption**With natural regeneration providing 240 energy daily, you can supplement your runs with battery-restoring items (blue crackers) or by spending Polychrome. For free-to-play accounts, utilizing 1–2 Polychrome refreshes per day is highly recommended, as the double yield significantly increases the value of every unit of currency spent.**3. Speed-Run Team Compositions**To make the most of this limited window, use teams capable of sub-minute clears. Reliable free-to-play options include:* **DPS:** Anton or Corin (aim for skill level 6+).* **Stunner:** Anby or Ben to force quick breaks.* **Support:** Nicole or Soukaku for critical buffs and energy management.Premium characters like Zhu Yuan or Ellen will further decrease your clear times.### Why This Event MattersThis isn’t just another challenge—it is pure resource efficiency. If you are preparing for future banners or building secondary teams, this event is your best friend. Even if you aren’t currently struggling for materials, using your battery now will save you days of future grinding.### Troubleshooting and FAQs* **Event Not Appearing?** Ensure you have finished Chapter 1. A quick game restart usually resolves visibility issues.* **Are All Rewards Doubled?** Yes, all standard drops including skill chips and materials are doubled. Note that fixed first-time completion rewards remain unchanged.* **Is Co-op Available?** No, Combat Simulation is strictly a solo experience, so focus on your own team synergy.Once the event concludes on July 27, drop rates will revert to normal. Use your newly acquired stockpile to ascend your favorites and push deeper into high-difficulty content like Shiyu Defense. If you find yourself with excess materials, it’s a great time to start investing in a new character project!