If your lab upgrades in Last Z: Survival Shooter feel painfully slow, chances are you’re running out of one key resource: Badges.
Badges are essential for lab research, and without them your overall power progression quickly stalls. If you know where to look and stay consistent with daily, weekly, and seasonal activities, earning 200,000+ badges per month is absolutely possible even for free-to-play players. Let’s break down the best ways to farm badges efficiently.

Daily Badge Sources
Danger Lurks Event
One of the easiest daily badge sources comes from the Danger Lurks event.
By defeating Boomers during the event, players can earn 200 badges every day. Since most players already complete this event as part of their routine gameplay, this is essentially free daily progress toward your badge goal.
Explore Treasure
The Explore Treasure event is one of the most valuable badge sources in the game.
Each time the event appears, players can earn 1,000 badges. The number of times it shows up depends heavily on how active your alliance is. In a strong alliance, the event can appear 1–5 times per day.
A realistic estimate for most active players is two events daily, which already provides 2,000 badges per day.
This is why joining an active alliance is extremely important for long-term progression.
Alliance Duel
Alliance Duel is another major daily activity that rewards badges.
Over the course of a week, players can earn up to 13,620 badges from Alliance Duel rewards alone. However, the real key here is Alliance Recognition research in the lab.
Once this research is maxed, it doubles the rewards from Alliance Duel, including Dual Mastery Supply Boxes, which can also contain badges.

Weekly Badge Income
Zombie Saga
By simply completing routine weekly tasks in Zombie Saga, players can earn 1,300 badges per week.
This might not seem like much at first, but over a month it adds up to:
1,300 × 4 = 5,200 badges
Small sources like this are easy to overlook, but they make a meaningful contribution to your total badge income.

Monthly Badge Events

Lucky Discounter
The Lucky Discounter event is one of the biggest badge sources each month.
Depending on how many diamonds and tickets you use, players can earn anywhere from 10,000 to 20,000+ badges.
For most organized free-to-play players, 20,000 badges per month is a very realistic target.
Duel League
Winning Duel League can reward players with up to 20,000 badges every four weeks.
Success here depends more on activity and alliance coordination than spending money. Smart timing and high scoring during later event days can dramatically increase your points.
State Ruler Event
The State Ruler event is another excellent monthly badge source.
Players can earn badges through reward chests and victory bonuses:
- 9 reward chests contain a total of 9,350 badges
- Since there are two fights, players can open them twice
That equals:
18,700 badges from chests
If your state wins both battles, you also receive an additional 3,000 badges, bringing the total to:
21,700 badges per month
Dual Mastery Supply Boxes Strategy
Alliance Duel rewards include Dual Mastery Supply Boxes, which have a chance to contain badge rewards.
Each box has a 0.6% chance of giving a 3,000 badge consumable.
Over four weeks, active players can collect around 944 boxes. Instead of opening them immediately, the best strategy is to save them and open them all once per month.
Statistically, opening around 1,000 boxes should yield roughly:
6 badge rewards × 3,000 badges = 18,000 badges
Patience here can make a huge difference in your monthly badge income.
Seasonal Badge Sources
Seasonal content is one of the largest badge sources in Last Z.
Daily Seasonal Influence Rewards
By defeating seasonal enemies and increasing your Seasonal Influence, players can earn up to 444 badges per day.
Over a 28-day period, this equals:
12,432 badges per month
This reward can be doubled with the seasonal pass, but even without spending money it remains a strong and reliable source.
Season Glory Rewards
Season Glory rewards are often overlooked but very valuable.
During a full season, players can unlock 36 reward chests by earning glory points through defeating enemies.
Each chest includes badges, and unlocking all of them grants:
15,300 badges per season
Since a season typically lasts about three months, that averages to roughly:
5,000 badges per month

Season 4 Badge Farming
Season 4 introduces several new badge farming opportunities.
Bio Institute Shop
The Bio Institute Shop allows players to purchase badges using seasonal currency.
Without spending extra fuel, players can realistically earn about:
5,000 badges per week
Over four weeks, that’s roughly:
20,000 badges per month.
Trade Hubs
Season 4 also introduces Trade Hubs, which provide weekly badge rewards depending on hub level:
|
Trade Hub Level |
Badges |
|
Level 1 |
1,000 |
|
Level 2 |
1,500 |
|
Level 3 |
2,400 |
In total, controlling a full trade hub provides 4,900 badges per week.
Combined with the Bio Institute Shop, Season 4 players can earn close to:
10,000 badges per week
or nearly 40,000 badges per month.
Conclusion
Badges may seem rare at first, but once you know the main sources, they add up quickly. By staying active and managing rewards wisely, reaching 200,000+ badges per month is very achievable.
If you want to progress even faster, many players choose to top up Last Z through LDShop, a reliable platform with competitive prices that makes it easy to stay ahead in the apocalypse.

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Savannah Reed Experienced Game Editor
Savannah Reed is a senior game editor at LDShop.gg, specializing in in-depth coverage of RPG and strategy games. With a strong focus on titles like Wuthering Waves, Honkai: Star Rail and Whiteout Survival, she combines industry insight with firsthand player experience to deliver clear, informative, and actionable content. Her work is dedicated to helping gamers make smarter decisions—whether it’s understanding new updates or optimizing their in-game strategy.



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