Server vs Server (SvS) Guide
What Is SvS?
Server vs Server (SvS) is the largest competitive event in Last War: Survival. Two servers are matched and fight for 6-7 days in a points-based war. Every player on your server contributes — kills, captures, gathering, and event tasks all count toward the server's total. The winning server takes the largest rewards in the game.
The strongest individual player on a disorganised server loses to a coordinated mid-tier player on a well-led server. SvS rewards the alliance that follows orders, fills rallies, defends together, and hits high-value targets. Solo attempts waste troops against organised defenders. The single most important SvS skill is "do what the call says, on time."
How SvS Matchmaking Works
Servers are matched against opponents of similar age and total power. The match is announced typically 5-7 days before SvS opens, giving both sides preparation time. Once matched:
- Both servers can scout the other's map
- Cross-server chat becomes available (optional, often used for diplomacy)
- Migration windows freeze — players cannot leave a server during an active SvS cycle
- Internal server fighting should pause completely
Pre-SvS Preparation Timeline
The preparation week is more important than the SvS days themselves. Servers that arrive prepared dominate. Servers that scramble in the final 24 hours lose.
1 Week Before — Diplomacy and Planning
- Server-wide NAP enforcement — all alliances on your server stop fighting each other. R5s coordinate through Discord or external chat
- Identify server leadership — usually the top 1-3 alliances run strategy. Smaller alliances follow their lead
- Scout the enemy server — identify high-value targets (top players, key alliances, major hives)
- Tactics Cards / Coffee buffs prepared for the active season — see Tactics Cards Guide and Caffeine Institute Guide
3-4 Days Before — Resource Stockpile
- Shields stockpiled — multi-day shields for everyone. SvS without shield = troop graveyard
- Speedups banked — healing, training, and construction. SvS will burn through them
- Hospitals upgraded and emptied — capacity for the troop losses you will take
- Train replacement troops — fill the queue Mon-Thu so casualties replace fast
- Coordinate rally leaders — top accounts lead rallies; mid accounts fill them
1-2 Days Before — Final Setup
- Identify your role: rally leader, rally filler, garrison defender, gatherer, scout
- Pre-position teleports if using bubble strategy — high-power players move toward border
- Apply long shield if you will sleep through any part of SvS
- Charge devices and confirm sleep schedule — knowing when your alliance is most active matters
SvS Day 0 (the day before opening) — Quiet Day
- No rallies, no captures, no aggression — both sides are usually quiet to lock in setup
- Final shield checks for everyone
- Final rally leader confirmations in alliance chat / Discord
SvS Day Structure
SvS typically runs 6 days with rotating themes. The exact schedule varies by version but the pattern is consistent:
Kill Day point multipliers are so large that 4-5x more points are scored on Day 6 than any other single day. Servers can lose Days 1-5 and still win SvS by dominating Day 6. Conversely, servers that rest on a Day 1-5 lead get caught and passed if they take Day 6 lightly. Treat Days 1-5 as preparation — Day 6 is where the war is actually won.
Point Sources by Day
Days 1-5: Personal Activity Points
Every personal activity that matches the day's theme produces SvS points. The exact values shift between game versions but the relative weights hold:
- Building upgrades (Day 1) — high points for HQ pushes, especially ones queued and timed for the day
- Research completion (Day 2) — long research finishes count
- Hero stat upgrades / Exclusive Weapons (Day 3) — banked hero items spent today
- Troop training (Day 4) — T11 waterfall training is the best points-per-speedup day
- Gathering on enemy territory (Day 5) — sending marches to enemy resource tiles. Risky but high-value
Day 6: Kill Points
Kill points are server-pooled. Every troop killed by your server scores. Common kill sources:
- Rally targets — large enemy rallies on weaker enemy bases. The biggest single kill events
- Defending against rallies — kills from defensive holds count for your server too
- Solo attacks on shielded-down enemies — opportunistic when you can find them
- Reinforcement battles — sending troops to defend an alliance member who is attacked
Your Personal SvS Role
Not every player attacks. SvS rewards specialised contributors. Pick a role and play it well.
SvS Day 6 — Hour-by-Hour
The single most important day. A well-run Day 6 plan looks like this:
- 00:00-04:00 — quiet hours for most servers. Apply shields, set defensive garrisons. Rallies typically pause
- 04:00-08:00 — early-morning probing. Some servers use this window for surprise rallies
- 08:00-12:00 — the morning push. Major rallies begin. Rally leaders coordinate timing
- 12:00-16:00 — mid-day peak. Most servers rally heavily here
- 16:00-20:00 — the decisive window. Most kills happen here. Maximum activity required
- 20:00-23:00 — late-day push. Last opportunities for kill points before the day closes
- 23:00-23:59 — final-minute kills. Some servers save big rallies for the closing window
SvS Day 6 cannot be coordinated through in-game chat alone — too slow, too fragmented. Discord, WhatsApp, or LINE is non-negotiable. Voice chat is even better for the peak windows. Servers that try to coordinate purely through in-game chat lose to servers that pre-built external coordination habits during pre-season.
Common SvS Mistakes
- Solo attacking organised defenders — wastes troops with no point return. Always rally
- Not shielding when offline — every unshielded base is a kill target. Even mid-power players
- Burning speedups Days 1-5 outside the matching theme — Day 1 building speedups score, Day 2 research speedups score. Day 3 building speedups score nothing
- Skipping the prep week — you cannot prepare for SvS in the final 24 hours
- Internal server fighting during SvS — breaking the server NAP wastes troops you need against the enemy
- Rallying without confirming the leader's call — premature rallies waste time. Wait for the formal "GO"
- Not reinforcing hive members under attack — one ally lost weakens the whole hive's defence
- Trying to solo-rally Day 6 — full alliance rallies always outscore solo attempts
- Logging off during the 16:00-20:00 peak window — the most important hours of the entire SvS week
- Treating Days 1-5 as the war — Day 6 multipliers mean the war is on Day 6. Don't burn out early
Cross-Server Diplomacy
SvS is competitive but some servers negotiate truces or specific terms:
- Surrender SvS — a weaker server may negotiate with the stronger one to lose gracefully and minimise troop losses. Both sides usually accept
- Even-fight SvS — equally matched servers sometimes agree to cap kill activity to specific windows so both sides can participate productively
- Specific target embargos — agreements not to attack designated players (often during real-life events like holidays)
These deals are negotiated at the R5 / server-leader level. Individual players follow whatever their server's leadership communicates.
Post-SvS Recovery
After Day 6 closes:
- Heal all wounded troops — hospitals will be full
- Rebuild lost troops — waterfall training to recover army size
- Replenish speedup stockpile — for the next event cycle
- Server diplomacy reset — internal NAPs that were extended for SvS may need renegotiation
- Reward claim — claim every SvS milestone reward. Rewards include UR Hero Shards, Skill Medals, gear materials, and gems
Related Guides
- Alliance Strategy Guide — alliance management and the broader SvS context
- PVP Squad Setup Guide — squad formations for SvS combat
- Combat Mechanics Guide — combat triangle and damage formulas
- Rally Guide — full rally mechanics and leader bonuses
- Capital Conquest Guide — related cross-server competitive event
- Profession System Guide — War Leader vs Engineer for SvS
- Daily Routine — the daily routine that builds SvS-ready habits