The apocalypse doesn’t slow down, and neither should your upgrades…
In Last Z: Survival Shooter, every serious player knows that wrenches are pure gold. They’re the lifeblood of your tank progress, the one thing standing between a sluggish build and a monster war machine.
But here’s the thing: most players don’t realize just how many wrenches they’re leaving on the table every week. Between event rewards, store rotations, and VIP perks, you can actually pull in 300 or more each month… if you know where to look.
This guide breaks it all down. Every reliable source, every event worth your time, and a few smart habits that will keep your wrench count climbing long after everyone else runs dry.
Getting wrenches in Last Z isn’t about luck, it’s about understanding how the game rewards consistency. Between weekly store resets, alliance activities, and time-limited events, there’s always a new opportunity to collect more if you plan ahead.
Wrenches don’t just drop from random zombie hunts, they’re locked behind structured rewards that reset weekly or monthly. Once you know where to look, you’ll start collecting them without even thinking about it.
Below are the seven most reliable ways to farm wrenches fast, stack them efficiently, and keep your tank upgrades rolling all month long.
It’s not flashy, but it’s free. The Glory Store gives you 5 golden wrenches every week in exchange for Glory Points. That’s 20 a month (guaranteed and consistent).
You’ll find it under the main Store tab > Glory Store. Prioritize these purchases before spending Glory Points on anything cosmetic. They reset weekly, so missing a collection is like throwing away a free tank upgrade.
Once your VIP rank hits Level 5, a whole new shop opens up, the VIP Store. This one’s where the numbers start stacking up fast: 10 wrenches per week, which makes 40 per month if you buy consistently.
Unlike the Glory Store, this requires some commitment. Getting to VIP 5 takes a bit of grinding or a few purchases, but it pays for itself long-term.
The VIP Store often includes better rates on speed-ups and resource bundles, so pairing wrench buys with those upgrades keeps your economy balanced.
If you’re hovering at VIP 4, it’s absolutely worth pushing the next level. From this point on, your wrench count and tank growth curve take a noticeable jump.
If you’re skipping Zombie Siege, you’re leaving serious loot on the table. A standard clear gives around 12 wrenches, and skilled players can snag a bonus 13th with the right setup (usually by focusing damage output before the final wave ends).
Since Siege runs weekly, that’s roughly 50 wrenches per month, and it’s all performance-based. You don’t need to win the entire leaderboard, you just need to complete all waves efficiently.
This one’s underrated but incredibly powerful over time. If you’re in a dead alliance, your wrench gains will be too. But an active group that digs daily can net you 30–40 wrenches per week, easily 150+ a month if your team’s consistent.
The key here is participation. Even if your day is packed, log in long enough to dig or assist. You might get zero some days, or double rewards on others… it averages out. Don’t rely on luck, rely on routine.
If you’ve never seen wrench drops from Treasure before, check your alliance’s activity level. Consider switching to a more active one, it’s one of the biggest hidden advantages in the game.
This limited event might not feel like much, but it’s the definition of “free value.” Over six days, you get one golden wrench per day, with simple log-ins (no missions, no grind).
Keep an eye on the Events tab, usually under Limited-Time Events. It runs about once a month, so missing it means throwing away six guaranteed wrenches. Small gains add up fast, especially if you’re already pulling 250+ monthly from the other methods.
The Dawn’s Light Event is where your patience pays off. Completing its objectives gives you 10 golden wrenches, and the missions are easy enough that even casual players can finish them.
Focus on completing the daily tasks rather than trying to binge everything in one day. The event rewards are time-based, and players who spread progress evenly through the week always finish comfortably.
Combine this with your Super Wrench event haul and you’ll add 16 more wrenches monthly, just from casual play.
Finally, the Gacha Gold event, the high roller’s playground. This is the only source that technically has no cap. You get 5 free draws per day, but after that, you can spend 100 diamonds per extra draw to earn keys that unlock wrench boxes.
The best value lies in the 120-wrench box, which costs 500 keys (≈ 4.17 keys per wrench). Smaller boxes cost more per unit, so if you’re going to spend, save up and buy in bulk.
Even if you stick to free draws, you’ll earn a few dozen wrenches each cycle. But if you’re chasing tank upgrades or leaderboard runs, investing diamonds here can easily push you beyond 300+ wrenches a month, all while keeping your progress on pace with top spenders.
Wrench farming in Last Z: Survival Shooter isn’t just about where you play, it’s about when you play. The game’s event calendar is constantly rotating, and knowing how to time your actions around those windows can double your wrench income without extra effort.
1. Check the Event Calendar daily. Wrenches often appear in limited Hot Events, login rewards, or 7-day missions. Syncing your progress, like completing Zombie Siege stages or alliance digs during these events, can earn double rewards.
2. Use your Gacha Gold draws wisely. The 120-wrench box offers the best diamond-to-key ratio, but timing matters more than price. Save your draws for days when wrench rewards overlap with other spending or key-collection bonuses.
3. Follow your alliance rhythm. Active alliances tend to coordinate Digging for Treasure or Siege participation right before reward refreshes. That consistency stacks and over time, it’s the difference between 200 and 350+ monthly wrenches.
Every survivor in Last Z knows the grind never really ends.
There’s always another event, another upgrade, another rush to stay ahead. But if you’re tired of paying full price for every pack or top up, it’s time to start playing smarter.
Instead of paying full price for in-game purchases, Packsify lets you top up at a discount so you can progress faster without overspending.
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Download Packsify on Google Play (Android users) or get Packsify for iOS here, and start making the most of your upgrades today.