Zenless Zone Zero Data Bounty Guide: Double Combat Sim Drops

Maximize Rewards in Zenless Zone Zero’s Data Bounty: Combat Simulation (2025)

In the rapidly evolving landscape of gacha endgame, optimizing stamina and material gain is more important than ever. Zenless Zone Zero’s upcoming Data Bounty: Combat Simulation event takes center stage for high-efficiency resource farming—and for those preparing for future S-Rank Proxy releases, doubling down on event drops is simply mandatory. Every competitive player eyeing challenging late-game content (like rogue-lite domains or hard-mode commissions) should prioritize this event.

Below, we break down everything Proxies need: schedules, requirements, rewards, optimal strategy, and how this event will impact your progression and team development in both the current patch and beyond.

At a Glance: Key Event Details

• Event Name: Data Bounty: Combat Simulation
• Duration: 2025-12-24 04:00 – 2025-12-29 03:59 (server time)
• Eligibility: Unlock Combat Simulation by completing Main Story Chapter 1 "Cat's Lost & Found."
• Daily Bonuses: 5 random enemy cards have buffs that rotate daily at 04:00 (server time)
• Reward Bonus: Double rewards for each successful challenge attempted during the event window
• Image recommendation: Use the official event artwork with alt text: "Official art for Zenless Zone Zero Data Bounty: Combat Simulation event showing Proxies in battle stance."

---

Event Schedule: When and What to Farm

Phase	Start Time	End Time	Notes
Data Bounty Event	2025-12-24 04:00	2025-12-29 03:59	Double rewards on all enemy cards

• Timezone: All timings are server time; verify your in-game clock for accuracy.
• Buffs: 5 different enemy cards receive rotating buffs daily; plan your farming sessions to capitalize on the most advantageous buffs for your team.

---

Event Mechanics: How Double Rewards Work

During Data Bounty: Combat Simulation, all players who meet the entry requirements can select any enemy card within Combat Simulation and earn double drops upon clearing the challenge. This means:

• Twice the materials, upgrade items, and EXP tokens per run—significantly reducing the grind for break material bottlenecks.
• The buffed enemy cards change daily. Some buffs will make certain encounters easier (or at least more rewarding), so plan your stamina around target farming days.

If you’re aiming to break into the Day 1 meta or want to have flexibility for future Proxy banners, this event is critical for stockpiling advancement resources.

---

Preparation Checklist: Event Optimization

• Complete Story Chapter 1 ("Cat's Lost & Found") and unlock Combat Simulation before the event goes live.
• Track rotating buffs and align your Combat Simulation attempts with the most efficient cards for your roster.
• Budget your stamina—maximum value is found by clearing every possible run within the double drop window.
• Plan for core materials associated with your main team and potential future Proxy pulls. With Zenless’s release pace, saving on upgrade materials now frees up long-term stamina for limited banners.
• Set reminders for the daily reset (04:00 server time) to avoid missing optimal enemy buffs.

---

Endgame Analysis: Impacts on Team Progression

Early- and mid-game players: This event is a golden opportunity to rapidly advance core Proxies and unlock critical skill/ascension bonuses. Double drops will reduce time spent repeating the same simulations, accelerating team upgrades for the next endgame content cycle.

Endgame players: Even if you are close to maxing out your favorite Proxies, double-dipping on key mats ensures you’re ready for upcoming banners or experimental comps. Buffed cards may be especially useful for farming elusive late-tier components that normally have low drop rates.

Not stated in official materials: Whether the event impacts drop rates for rarer simulation-only components, but batch farming still remains best-in-class use of stamina.

F2P/Low-Spend Perspective:
– Focus on farming materials for current favorite Proxies and future top-tier banner releases.
– Since event duration is limited, ensure daily clears during active period to stretch every resource.

EarlyGG Recommendation: Best Practices

1. Prioritize upgrade materials for your main DPS and essential supports.
2. Monitor daily buffs; target enemy cards that align with your team’s strengths to minimize run failures.
3. Log in daily and exhaust your Combat Simulation attempts every day of the event.

For optimal planning, see EarlyGG’s deeper guide to Data Bounty farming strategies.

---

Conclusion: Data Bounty Is a Must-Farm for Every Proxy

With a rare double-drop event tied directly to team development and efficiency, Data Bounty: Combat Simulation is a key event for any serious Zenless Zone Zero player. With only a five-day window, missing even a single day could mean being left behind in mat progression.

Looking ahead, we expect HoYoverse to rotate more high-value events of this type—cementing efficient event farming as an essential pillar of competitive play. Watch for our theorycrafting coverage as new team compositions and meta shifts emerge in response to these resource accelerators.

For further updates on event cycles and banner speculation, check our Zenless Zone Zero tier list and follow EarlyGG for the latest guides and endgame analytics.