F7 Defense Mode

Overview
F7 is a 50 stage tower defense. Players must protect a stone from monsters that spawn in continuous waves. Monsters walk on a set path and do not attack players. All monsters are super armored, meaning they cannot be flinched or knocked down regardless of what attacks are inflicted, however they are vulnerable to debuffs such as Stun, Freeze, and Witch's Curse, even the boss spawns. Monsters spawn in increasing frequency and HP depending on the stage.

Each monster killed grants the party Tactical Points, or TP. These points are to be distributed by the party towards tower construction and party buffs in order to successfully protect the stone from destruction.

Different F7 maps present different challenges and will need varying tactics to complete. While some maps can be completed with one person, other maps may need cooperative teamwork.

All monsters except for Bonus Monsters do not drop loots. Bonus Monsters appear every 5 to 10 stages (Every 10 stages up to 20 and every 5 thereafter) and drop Weapon Enchant Powder, Armor Enchant Powder and Gold.
 * 1) Bonus monsters cannot be attacked by Guardian Towers
 * 2) Bonus monsters will only receive 1 damage per hit
 * 3) The number of bonus monsters that spawn is dependent on the number of party members

Entering F7 defense mode
To enter an F7 map, the player must meet the minimum level requirement of that particular map, have the necessary amount of Defense Scrolls, and have completed that map's Hero Quest (F5). While the party leader must fulfill all requirements to enter F7, it is not necessary for other party members to do so (they must, however, have completed the initial F7 quest, and be the appropriate level for that map).

If any members of the party do not meet the requirements of the map's F7 defense mode, the party will not be able to enter.

F7 defense mode requires one Defense Order per two players.

Maps
F7 Defense Mode is currently available at the following maps.

Fatigue System
With New Origin, F7 now has a Fatigue system. Players begin with 1700 fatigue which is depleted every round. The more players in the party, the less fatigue is depleted per round. Players may refill their daily fatigue by waiting 24 hours. Players can also limit fatigue use by using the Item Mall item, Tactical Fatigue recovery potion which temporarily makes it so that no fatigue is used.

F7 Coin System
There is also a F7 Game Coin from the Item Mall. This allows players to
 * 1) Use a Point Multiplier to accumulate points that can be converted into tactical points.
 * 2) Points are doubled after each stage. (Max 11 Stages, 15360 Point)
 * 3) Accumulated points can be converted into tactical points. (Party Leader Only)
 * 4) Monsters can still be killed without converting to tactical points
 * 5) Once converted, accumulated points will be 0 and Point Multiplier can be used again.

F7 Defense Mode Quest Tree
Long Time Buddy News of old buddy
 * 1) Speak with Head Scientist 
 * 1) Answer 's questions correctly

Tactical Crisis Scientific Support Help of Friend Belongings of old buddy Making Power Source I will call it, Guardian Prove it! Official Appointment
 * 1) Speak with Guard Captain 
 * 2)  will send you to Arcanist  to ask for magical assistance.
 * 1) Speak to 
 * 2)  will send you to  for more advice.
 * 1) Speak to 
 * 2)  will send you to  to retrieve Farrell's Diary.
 * 1) Speak to . Receive 1 Farrel's Diary.
 * 2) Return to  with the Diary.
 * 1) Speak to . He will request you to hunt 15 Lava Ingot and 1 Flamer Rock to build his machine.
 * Lava Ingot can be collected by killing Lava Boombooms. Flamer Rock is obtained by killing Rokko. Both of these monsters can be found in Valid Raeth mission map.
 * 1) Return to  with the items.
 * 1) Speak to . He's decided to name his invention "Guardian."
 * 2) Speak to <Hoffman> to share <Noel>'s good news.
 * 1) Speak to <Hoffman>. He's excited about the news and wants to test the Guardians' power with <Noel> immediately.
 * 2) Watch the short cutscene of <Noel> and <Hoffman> testing the Guardians.
 * 3) Speak to <Hoffman> again. Receive 2 Defense Order: Mission Map
 *  At this point, the quest prerequisites for F7 is complete, and if the player is level 40 he/she may enter F7.
 * 1) Speak to <Hoffman>. He requests you present a certificate to <Noel> for his amazing invention, and wants to appoint <Noel> as the Dragon Fellowship's chief scientist. Receive 1 Certificate of Appointment.
 * 2) Speak to <Noel> with the Certificate. He will reward you a set of Guardian Summoning Kits, which are tower guardians that can be used in Mission Maps.

Map Data
Every F7 Map contains one Stone and the NPC Head Scientist <Noel>. Noel can provide the party special buffs to aid in protecting the stone from the ongoing waves of attack.

PvM Data
The following skills are effective against debuffing F7 monsters:

Tower Data
Towers are the party's main offense in F7 Defense Mode. Several types of towers are available for the players to strategize with. Each tower has its own property of attack, serving different purposes and uses.

Towers can be upgraded to increase its damage, and can also be buffed to maximize damage output. These buffs will last for 60 seconds and will cost the party TP. Players can double the tower's ATK (F2), and/or double its ATK Speed  (F3). Not all towers have both of these buffs available.

Rewards
Every ten stages successfully completed awards each party member one medallion of increasing Star Grade. These medallions are a Gacha-type item that randomly produces one of five types of earrings. Medallions and its contents can be sold on the market, however the contents are Soul Bound upon equipping.

The bonuses of each earring increases by its Star Grade, as well as the difficulty of the F7 map itself.