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For Last Fortress: Underground alliance leaders and members who want to score well every week. Checked October 2026.
Short answer: Alliance Duel runs Monday to Saturday, one stage a day: gathering, construction, research, recruitment, training and war. You need 30 members, 200K total CP and a top-30 server ranking to enter. Save the right items for each day and research Alliance Commemoration first.
See Last Fortress: Underground packs and prices
Point values and tips here come from community guides for game version 26.0901.001 (September 2026). The event screen shows the real values on your server, so check it before you plan around a number.
Requirements and rewards
- At least 30 alliance members, 200K+ total alliance CP and a top-30 ranking on the server.
- Your alliance is paired with one of similar power.
- Daily Victory Rewards go to the winner of each stage. Weekly Victory Rewards go to the alliance with the most points at the end.
- Personal rewards depend on your own contribution. Research can double them.
The six days
| Day | Theme | What scores |
|---|---|---|
| Mon | Resource gathering | Stone 30, iron 45, z-coin 60, aluminum 1, alloy 80, diamond 50 per unit |
| Tue | Construction | Facility CP 3 each; 10 per minute of construction speed-up; rapid builder 5,000 per use |
| Wed | Research | Tech CP 3 each; 10 per minute of research speed-up; gear material 10,000 each |
| Thu | Recruitment | Combat recruit 4,000; faction, season, selectable and summit recruits 6,800 each |
| Fri | Training | Soldier training from 20 (level 1) up to 5,000 (level 10); 10 per minute of training speed-up |
| Sat | War | Rival soldier kills 400%; capturing the rival main city 10,000,000 |
Every day also gives 50 points per diamond purchased, and research bonuses do not change that rate. Thursday also holds the Champion Duel qualifiers, which add recruitment points.
Research order
- Alliance Commemoration: max Super-value Points (raises points in every stage) and Bonus Rewards (unlocks personal reward boxes).
- Once Again I to III: double chest rewards, including medals and diamonds.
- Ultimate Weapon Commemoration: adds ultimate weapon rewards and points.
- Alliance Conflict: last, because it only affects the final stage.
Tips for each day
- Monday: send trucks on Sunday so they return when the stage starts. Iron gives the best points per unit of mining time.
- Tuesday: upgrade the facilities with the best CP per minute. Turn on the upgrade confirmation setting so finished buildings do not pop by accident.
- Wednesday: forge gear and collect materials while a buff card is active. Skip Mutation Fusion, which has about a 60% downgrade chance.
- Thursday: save recruitment points and cards for this day. Consider 100% buff cards here.
- Friday: keep troops for upgrades, because upgrades count. If you are at capacity, kill troops by attacking a bot.
- Saturday: tent wars and peace deals can protect points against a stronger rival. Train troops on Friday, not Saturday.
If you are clearly winning, experienced players stop at a major chest (the 3rd, 6th or 9th) and save resources for the next duel. They also advise not to merge 200% cards unless you will have at least three 100% cards left.
Scoring details worth knowing
- Tuesday facility upgrades: season facility levels 1 to 5 score 50,000, levels 6 to 10 score 100,000, and the score rises to 500,000 for levels 26 to 30.
- Tuesday APC parts (S3 and later): from 390 points for a white part up to 1,600,000 for a golden one. Purple parts are 25,000, orange 100,000 and red 400,000.
- Wednesday gear: purple gear forged scores 20,000 and orange gear 100,000.
- Friday training: level 1 soldiers score 20 each and level 10 soldiers score 5,000 each, so upgrading high-level troops beats training new low ones.
- Saturday Season of War: you can pick one weekday theme before Saturday and score it at 80% of its normal rate. If you pick none, Gather Resources is the default.
Update 26.0901.001 also unlocked T11 soldiers on post-Season X servers. They need Glory Level 5 training facilities and Originium Tech.
For spenders and alliance leaders
- Buy before the day, not on it. Because diamond purchases score 50 points each day, a pack you were going to buy anyway can be bought on a day you need the points. Check the event screen first, since point values can change with updates.
- Save by day. Construction speed-ups for Tuesday, research for Wednesday, recruitment tokens and faction cards for Thursday, training speed-ups for Friday.
- Leaders: post the six-day plan on Sunday. Ask members to hold their items until the right day. This is the single biggest gain, and it costs nothing.
- Heroes and recruitment: plan your Thursday batch with the hero tier list.
- Alliance leaders who buy packs for the whole team can read what Packsify offers alliance leaders.
Sources: community Alliance Duel guides for version 26.0901.001 (September 2026) and the in-game Alliance Duel event screen.
Spotted a mistake? Tell us in the Play Smarter Discord and we will fix it.
Where Packsify fits
Packsify buys the Last Fortress: Underground packs you pick, so they are ready before a duel day. With Packsify you get up to 13% more pack value for the same money. Packsify buys the exact pack through the official Apple App Store or Google Play, the same way a purchase on your own phone works. Read how we keep accounts safe before your first order.
Check Packsify for Last Fortress: Underground
More Last Fortress: Underground guides: top-up guide, codes list, hero tier list.
Packsify is an independent service, not affiliated with Last Fortress: Underground or its publisher.
FAQ
Who can play Alliance Duel in Last Fortress: Underground?⌄
What happens on each day of Alliance Duel?⌄
What should an alliance research first for Alliance Duel?⌄
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