The vibrant urban fantasy world of Zenless Zone Zero is filled with danger, style, and a vast roster of powerful Agents. For many Proxies, the ultimate dream is to build a squad around a top-tier S Rank Agent without emptying their wallets on gacha pulls. The good news is that HoYoverse has embedded a remarkably generous path to a guaranteed free S Rank Agent, making that dream achievable for every dedicated player. Even years after the game’s initial launch, this system continues to reward patience and consistent gameplay.

S Rank Agents represent the pinnacle of combat capability in New Eridu. They boast exceptional base stats, devastating ultimate abilities, and synergy potentials that can dramatically ease the challenge of exploring the Hollows. Whether a Proxy leans toward close-quarters brawlers, ranged specialists, or supportive tacticians, landing a free S Rank character can completely transform their team-building options. The process does not require a single purchase of premium currency — it only asks for time, engagement, and a clear understanding of the Stable Channel banner.

Who Can Be Chosen for Free?

Upon meeting the requirements, players gain access to a selection of six permanent S Rank Agents from the standard banner roster. Each character brings a unique attribute, combat style, and faction synergy, so choosing wisely is essential. Here is a quick overview of the available free S Rank Agents in 2026:

Grace Howard is a ranged specialist who uses a nail gun and grenades to stack Electric Anomaly Buildup at a frightening pace. Rina controls two Bangboo, Drusilla and Anastella, buffing the entire squad while dealing Electric damage from a distance. Koleda swings a heavy hammer and wrench to inflict massive Daze, making her one of the most reliable Stun units. Nekomata, with her dual blades and agile dodge counters, slices through Physical-weak enemies with ease. Soldier 11 wields a flaming blade, enhancing her Basic Attacks to deliver consistent Fire damage. Finally, Von Lycaon — the elegant wolf Thiren — unleashes charged kicks that stagger even the toughest foes, accumulating Daze with every blow. Each of these Agents can serve as a powerful centerpiece for a team, and the freedom to pick any of them is the true prize of this system.

Understanding the 300-Search Milestone

The mechanism to acquire a free S Rank Agent revolves entirely around the Stable Channel, Zenless Zone Zero’s permanent banner. Unlike limited-time banners that rotate every few weeks, the Stable Channel remains constant and uses its own dedicated currency: Master Tapes. These gray-colored tapes can be earned by simply playing the game — through daily activities, in-game events, character level-up rewards, story progression, and sometimes as login bonuses. No Poly-chromes or real-world money are required to obtain Master Tapes, though players can optionally convert other currencies if they wish to accelerate progress.

Every single Search (pull) performed on the Stable Channel adds to a hidden cumulative counter. Once a player reaches a total of 300 Searches on this banner, a special one-time selection screen will unlock. On this screen, Proxies can manually pick any one of the six permanent S Rank Agents mentioned earlier. The Agent is added to the roster instantly, fully unlocked and ready for combat.

It is crucial to understand that these 300 pulls do not need to be done all at once. Any pull on the Stable Channel — whether from a single tap or a 10-pull batch — counts toward the milestone. A player who accumulates a few Master Tapes weekly will eventually hit the goal, even if they only pull sporadically. To track progress, simply open the Stable Channel banner and look at the progress bar displayed at the bottom right. The counter clearly shows how many Searches have been made and how many remain until the 300 mark.

Strategic Steps to Claim Your Free S Rank Agent

Achieving the 300-Search milestone requires patience, but a few simple habits can speed up the process significantly:

1. Collect Master Tapes actively. Every event, battle pass free tier, and login reward should be treated as a source of these valuable tapes. Check the in-game mail regularly, as HoYoverse often distributes tapes during celebrations or maintenance compensations.

2. Avoid spending Master Tapes elsewhere. Master Tapes are exclusively usable on the Stable Channel. Never convert them into other currencies or waste them on featured banners that require Encrypted Master Tapes. Safeguarding every single tape for the permanent banner is the fastest route to the free S Rank Agent.

3. Pull as soon as ten tapes are saved. Since the Stable Channel’s 10-pull guarantee for an A Rank or higher item offers no advantage beyond efficiency, pulling one by one or in tens yields the same progress toward 300. Do whatever feels comfortable, but consistency is key.

4. Monitor the progress bar. After each pulling session, check the counter to stay motivated. Watching the bar fill up gradually can be a rewarding visual reminder that a top-tier character is coming closer.

Once the 300th Search is completed, the selection interface appears automatically. The choice is permanent and cannot be changed later, so take a moment to evaluate your current team composition. If you lack a sturdy Stun unit, Koleda or Lycaon might be the best fit. If you need a support buffer, Rina is an excellent pick. For raw Physical damage, Nekomata excels, while Grace specializes in Electric anomaly strategies. Soldier 11 remains a reliable Fire attacker for any squad. The flexibility of this reward lets each Proxy tailor it to their own needs.

Why This System Matters

The free S Rank Agent reward is more than a simple giveaway. It democratizes access to high-tier characters and allows free-to-play Proxies to remain competitive in endgame content without feeling pressured to spend. Because the Stable Channel never expires and Master Tapes are earned naturally over time, there is no rush or fear of missing out. Even a casual player who logs in a few times a month will eventually assemble 300 Searches and walk away with a character that would otherwise require considerable luck or money.

In a landscape where many live-service titles lock their most desirable units behind paywalls, Zenless Zone Zero’s approach stands out. The knowledge that every pull on the permanent banner inches a Proxy closer to a guaranteed S Rank Agent transforms mundane gacha sessions into steps toward a concrete goal. It rewards dedication, encourages daily play, and gives every Proxy a personal milestone to celebrate.

So, for those still wondering how to unlock a free top-tier character in Zenless Zone Zero, the answer remains simple: keep playing, save every Master Tape, and let the Stable Channel do the rest. The Agent of your choice is waiting at the end of those 300 Searches.