Season 5 of Last War: Survival has dropped one of the most game-changing updates the series has ever seen. For the first time, you can literally invest your resources like a real banker — earning daily interest and doubling (or even tripling) your Crystal Gold just by depositing it in your alliance’s new Bank Strongholds.
Last War Bank Strongholds & Crystal Gold Shop Guide
If you manage your deposits correctly and plan your spending, you can stack up huge profits every few days and walk away with some of the best seasonal items entirely for free. This guide breaks down everything: how the bank system works, how to deposit, what interest rates actually give the best returns, and how to spend Crystal Gold wisely in the new Wild West Shop.
What Are Bank Strongholds?
Bank Strongholds are brand-new alliance buildings introduced in Season 5. Once your alliance captures one, it acts like an in-game financial hub where every member can deposit Crystal Gold for fixed periods in exchange for interest.
Think of it like a savings account. You put in your Crystal Gold, pick how long you want it locked, and at the end of that period the game mails you back your original amount plus profit.
The longer the deposit, the higher the interest rate.
Confirmed Interest Rates
| Deposit Duration | Level 1 Bank Return | Level 8 Bank Return |
|---|---|---|
| 1 Day | 110% return | 120–150% return (approx.) |
| 3 Days | 130% return | 180–220% return |
| 5 Days | 200% return | 280% return (confirmed max) |
To put it simply:
If you deposit 10 000 Crystal Gold in a Level 8 Bank for 5 days, you’ll get 28 000 Crystal Gold back — that’s 18 000 profit.
You can only hold one active deposit per bank, but you can use multiple banks at once. Smart players split their Crystal Gold between several strongholds: small deposits in lower-level banks, larger ones in the highest-level bank their alliance owns.
How Deposits Work
Fixed term: Once you deposit, you can’t withdraw early.
Automatic payout: When the timer ends, both principal and profit arrive via in-game mail.
No risk: If your alliance loses the bank during your deposit, you still receive full payment.
Higher levels = safer & richer: Higher-level banks not only give better rates but also contribute more rank points to your alliance.
The safest strategy is always 5-day deposits in the highest-level bank available. Shorter durations give less profit for almost the same waiting time.
What Is Crystal Gold?
Crystal Gold is the new premium-tier currency for Season 5. It’s mined from the Golden Wasteland and used to buy top-end items from the Wild West Shop. You can earn it through:
- Bank Stronghold interest
- Seasonal missions and milestones
- Special limited-time events
But the main source is still the interest system. Treat the banks as your Crystal Gold generators — the longer you play smart, the richer you get.
The Wild West Shop
Once you start collecting Crystal Gold, head over to the Wild West Shop to see what it can buy. The shop evolves throughout the season, unlocking new sections over time.
Early Shop Items (Days 1–3):
- Drone Combat Boost EXP Cards – 1 000 Crystal Gold
- Tactics Card Packs – 500 each
- Training Certificates, Coffee Beans, Overlord Chests
Mid-Season Unlocks (Day 10 onward):
- UR Tactics Card Packs
- Armament Cores
- Latte Recipes
- Advanced Upgrade Materials
Late Season Unlocks (Day 17 and beyond):
- Exclusive UR Gear Pieces
- Limited Overlord Event Items
The full event runs for 50 days+, and each phase opens new categories. Save your Crystal Gold — the rarest items arrive late, not early.
Profit & Spending Strategy
1. Always deposit at the highest-level bank your alliance controls.
A level-8 bank is worth the wait; it gives the full 280% return.
2. Use 5-day terms only.
They maximize your profit ratio. Anything shorter wastes potential gains.
3. Don’t panic if your alliance loses control.
Your deposit contract is honored even if the bank changes ownership.
4. Check the Wild West Shop regularly.
Every few days new items unlock. Timing your spending keeps you from wasting currency on filler items.
5. Save for value, not instant gratification.
Ignore resource packs. Prioritize UR cards, tactics sets, armament cores, and rare boosts — these scale your power long after the season ends.
Long-Term Benefits
This system finally gives alliances a reason to fight for economic control, not just military points. The more banks your team owns, the more passive income your members generate. It rewards activity, planning, and teamwork rather than just spending.
Even free-to-play players can grow faster than ever by cycling deposits. Over time, your Crystal Gold snowballs — every payout funds the next round, compounding your profit each week.
