MapleStory/Grandis

Grandis is 1 of the dimensions found in MapleStory.

Cernium

Cernium is the 1st area of Grandis, and requires Level 260 or above. There are 5 main areas.

1. Rocky Beach: Monsters are Level 260. Requires 50 Authentic Force.
2. Cernium West Castle Walls: Monsters are Level 261. Requires 50 Authentic Force.
3. Cernium Square: Town
4. Cernium East Castle Walls: Monsters are Level 262. Requires 50 Authentic Force.
5. Royal Library: Monsters are Level 263~264. Requires 50 Authentic Force.

Monsters have 65x the HP and gives 9.76x the EXP.

A Daily Quest can be performed to receive 5 Authentic Symbol: Cernium everyday. You can choose your daily quest. (All maps require 50 Authentic Force)

• Kill 1,000 Black Sun Soldiers
• Kill 1,000 Black Sun Archers
• Kill 1,000 Monster Seagulls
• Kill 1,000 Fire Spirits
• Kill 1,000 Wandering Scholar Spirits
• Kill 1,000 Curious Scholar Spirits

Fallen Cernium

Fallen Cernium is the aftermath of Cernium. Requires Level 265 or above. There are 4 main areas.

1. Battle-ravages West Castle Walls: Monsters are Level 265. Requires 70 Authentic Force.
2. Broken Cernium Square: Town
3. Battle-ravages East Castle Walls: Monsters are Level 266~267. Requires 100 Authentic Force.
4. Burning Royal Library: Monsters are Level 268~269. Requires 100 Authentic Force.

Monsters have 84.5x the HP and gives 10.83x the EXP.

A Daily Quest can be performed to receive 5 Authentic Symbol: Cernium everyday. You can choose your daily quest.

• Kill 1,000 Floras Soldiers (70 Authentic Force)
• Kill 1,000 Floras Monks (70 Authentic Force)
• Kill 700 Floras Assassins (100 Authentic Force)
• Kill 700 Floras Panzers (100 Authentic Force)
• Kill 700 Black Sun Bombers (100 Authentic Force)
• Kill 700 Black Sun Monks (100 Authentic Force)

Serene the Chosen one

Where Serene took the power of the holy sword. However, (redacted due to spoilers), so she is coming after you now. As such, she became a boss monster in Cernium.

For more details on Serene, see MapleStory/Seren.

Hotel Arcs

Hotel Arcs is the 2nd area in Grandis. Requires Level 270 or above. There are 4 main areas.

1. Outlaws' Wasteland: Monsters are Level 270. Requires 130 Authentic Force.
2. Fallen Wilderness City: Town
3. Romantic Drive-in Theater: Monsters are Level 271~272. Requires 160 Authentic Force.
4. Train With No Destination: Monsters are Level 273~274. Requires 200 Authentic Force.

• Monsters Level 270 have 92.1x the HP and gives 11.18x the EXP.
• Monsters Level 271~272 have 99.71x the HP and gives 11.54x the EXP.
• Monsters Level 273~274 have 109.85x the HP and gives 12.02x the EXP.

A Daily Quest can be performed to receive 5 Authentic Symbol: Hotel Arcs everyday. You can choose your daily quest.

• Kill 1,000 Iron Bullet Slayers (130 Authentic Force)
• Kill 1,000 Sandblade Looters (130 Authentic Force)
• Kill 700 Exploring Foxilions (160 Authentic Force)
• Kill 700 Junk Collector Foxilions (160 Authentic Force)
• Kill 500 Strict Station Employees (200 Authentic Force)
• Kill 500 Masterless Watchdogs (200 Authentic Force)

Authentic Force

Authentic force is used in Grandis to penetrate the defense system of monsters in Grandis. Authentic Symbols are the only source of Authentic Force. Based on your Authentic Force and required Authentic Force, your final damage is adjusted to between 5% to 125% of the original damage and monster damage will hit between 100% to 200% of its original damage (not applied to %HP attacks).

Your Authentic Force minus Map Required Authentic Force	Final Damage dealt to monsters (in % as compared to actual damage)	Monster Damage Multiplier (in % as compared to actual damage, not applied to %HP attacks)
-100 or less	5%	2x
-90	10%	2x
-80	20%	2x
-70	30%	2x
-60	40%	2x
-50	50%	1.5x
-40	60%	1.5x
-30	70%	1.5x
-20	80%	1.5x
-10	90%	1.5x
0	100%	1x
+10	105%	1x
+20	110%	1x
+30	115%	1x
+40	120%	1x
+50 or higher	125%	1x

Authentic Force can be obtained by equipping Authentic Symbols. You gain 10 Authentic Force per Authentic Symbol Level equipped.

Authentic Symbols

Authentic Symbols can be leveled up to give more Authentic Force by equipping duplicated Authentic Symbols. Authentic Symbols can only be obtained from daily quests. Monsters will not drop any authentic symbols.

In addition, events may give out Authentic Symbol Selector coupons to exchange for a symbol of your choice (only the ones that you have obtained a symbol from quest are allowed to be chosen)

• Required number of symbols to level up: $9\times SymbolLevel^{2}+20\times SymbolLevel$
• Required mesos to level up
  • Cernium: $100,000\times floor(970.2+884.4\times SymbolLevel)$
  • Hotel Arcs: $100,000\times floor(1.1\times floor(970.2+884.4\times SymbolLevel))$

"floor" means rounding down.

Both symbols and mesos are needed to increase the symbol level.

You can use a lower growth symbol to combine with a higher growth symbol at no additional cost, but mesos used on the lower growth symbol are not refunded. This makes it possible to exceed the required symbol for the next level, and the excess is carried over.

Cernium

Level	Total Symbols	Symbols to next level	Mesos used	Mesos to next level
1	1	28	0	185,400,000
2	29	76	185,400,000	273,900,000
3	105	141	459,300,000	362,300,000
4	246	224	821,600,000	450,700,000
5	470	325	1,272,300,000	539,200,000
6	795	444	1,811,500,000	627,600,000
7	1,239	581	2,439,100,000	716,100,000
8	1,820	736	3,155,200,000	804,500,000
9	2,556	909	3,959,700,000	892,900,000
10	3,465	1,100	4,852,600,000	981,400,000
11	4,565	N/A	5,834,000,000	N/A

Hotel Arcs

Level	Total Symbols	Symbols to next level	Mesos used	Mesos to next level
1	1	28	0	203,900,000
2	29	76	203,900,000	301,200,000
3	105	141	505,100,000	398,500,000
4	246	224	903,600,000	495,700,000
5	470	325	1,399,300,000	593,100,000
6	795	444	1,992,200,000	690,300,000
7	1,239	581	2,682,700,000	787,700,000
8	1,820	736	3,470,400,000	884,900,000
9	2,556	909	4,355,300,000	982,100,000
10	3,465	1,100	5,337,400,000	1,079,500,000
11	4,565	N/A	6,416,900,000	N/A

Authentic Symbols will increase your Final Stats and Authentic Force.

• All Jobs (except Xenon and Demon Avenger): 200 Final Primary Stat per 10 Authentic Force from Authentic Symbols + 300 Final Primary Stat per unique Authentic Symbol equipped
• Xenon: 78 Final STR, Final DEX and Final LUK per 10 Authentic Force from Authentic Symbols + 117 Final STR, Final DEX and Final LUK per unique Authentic Symbol equipped
• Demon Avenger: 3,500 Final HP per 10 Authentic Force from Authentic Symbols + 5,250 Final HP per unique Authentic Symbol equipped