Private servers are illegal, i would suggest staying away from them.
EDIT: Private Servers are not illegal. If they were WoW wouldn't have hundreds of'em.
They're just really hard to find and you have to search using Google and sometimes even certain mmo listing sites to find them.
Markus Persson worked at Mojang until September 2014 when he left his job. Before Mojang, he worked for King.com, Jalbum and was one of the founders of Wurm Online.
Its impossible to have the strongest deck since deck types cancel each other out. For example power decks are weak against defensive decks, defensive decks are weak against burn decks and burn decks are weak against healing decks and healing decks are weak against power decks. But if you really want strong deck then here is an infernity deck:Effect MonstersDark Grepher x2Glow-Up BulbInfernity Archfiend x3Infernity Avenger x2Infernity Beetle x3Infernity Guardian x3Infernity Mirage x3Infernity Necromancer x3Plaguespreader ZombieStygian Street Patrol x2Synchro MonstersAlly of Justice Catastor x3Black Rose Dragon x3Brionac, Dragon of the Ice BarrierGoyo GuardianInfernity Doom Dragon x2Mist Wurm x2Scrap DragonStardust DragonTrishula, Dragon of the Ice BarrierSpellsDark HoleFoolish BurialForbidden ChaliceInfernity LauncherLightning VortexMonster RebornMystical Space TyphoonTrapsBottomless Trap Hole x2Dimensional Prison x2Divine WrathDust Tornado x2Infernity Force x2Torrential Tribute
Though the answer is mostly determined by game strategy and style, these are some of the best synchro monsters around:Brionac, dragon of the ice barrier(limited due to its mutli-trigger effect and super easy summon. Offers solid 2300ATK/1400DEF)Stardust Dragon(first and longest lasting staple card for synchros due to its ability to negate card effects that destroy cards. Offers decent 2500ATK/2000DEF)Goyo Guardian(banned due to its super easy summoning condition, amazing effect special summon any monster it destroys by battle, and massive 2800ATL/2000DEF for a level 6!)Mist Wurm(awesome potential to return up to 3 cards your opponent controls back to their hand. Offers decent, but low 2500ATK/1500DEF)Dark Strike Fighter(banned due to a powerful 2600ATK/1800DEF, super easy to get out, and offers a game changing and game ending effect to tribute monsters and burn your opponent!)Flamvell Uruquizas(Offers good 2100ATK, has piercing damage, and gets stronger every time it inflicts battle damage to your opponent)Red Dragon Archfiend(though risky in your part, wipes out your opponent's defense and offers a massive 3000ATK)Ally Of Justice Catastor(offers solid 2200ATK, super easy to get out, and destroys any non-dark monster it battles)Trishula, Dragon Of The Ice Barrier(Easy to get out, powerful 2700ATK/2000DEF, and removes from play any card in their graveyard, hand, AND field)Ally Of Justice Decisive Armor(Offers massive 3300ATK/3300DEF, easy to get out, and offers three good-awesome abilities to wipe out your opponent)Scrap Dragon(Easy to get out, Powerful 2800ATK/2000DEF, and can destroy any one of your opponent's cards at the SMART choice of your own)Black Rose Dragon(Easy to get out, Offers solid 2400ATK/1700DEF, and wipes out the entire field)Colossal Fighter(Easy to get out, Massive 2800ATK, can revive itself when destroyed by battle, and powers itself up)Formula Synchron(Easy to get out, offers draw power when summoned, and IS A TUNER ITSELF!)Magical Android(Offers powerful 2400ATK, easy to get out, and heals you at the end of every turn)Red Nova Dragon(Powers up from every tuner in your graveyard, not TOO hard to get out, can't be destroyed by card effect, and can negate your opponent's attacks)Shooting Star Dragon(Solid 3300ATK/2500DEFand offers 3 nice abilities that can be activated EACH once per turn)Majestic Red DragonLevel: 10, Attribute: Dark, Type: Synchro Effect Monster, SubType: DragonATK: 4000, DEF: 3000Card Text: "Majestic Dragon" + "Red Archfiend Dragon" + 1 non-Tuner monster. This card cannot be destroyed by card effects. If this card attack, destroy all Defense Position monsters on the field after damage calculation. Once per turn, you can negate the effect(s) of 1 face-up monster your opponent controls and have this card gain ATK equal to the negated monsters ATK, until the End Phase. During the End Phase, return this card from the field to the Extra Deck, and Special Summon 1 "Red Dragon Archfiend" from your graveyard.Majestic Star DragonLevel: 10, Attribute: Wind, Type: Synchro Effect Monster, SubType: DragonATK: 3800, DEF: 3000Card Text: "Majestic Dragon" + "Stardust Dragon" + 1 non-Tuner monster. You can tribute this card to negate the activation of an opponent's Spell Card, Trap Card, or Effect Monster's effect and destroy all cards your opponent controls. Once per turn, you can negate the effect(s) of 1 face-up monster your opponent controls until the End Phase. Also, if the negated effect can be activated, you can activate it once as this card's effect. During the End Phase, return this card from the field to the extra deck and special summon 1 "stardust dragon" from your graveyard.Nitro WarriorLevel: 7, Attribute: Fire, Type: Synchro Effect Monster, SubType: WarriorATK: 2800, DEF: 1800Card Text: "Nitro Synchron" + 1 or more non-Tuner monsters. Once during each of your turns, if you activated a Spell Card, this card gains 1000 ATK during its next attack, for damage calculation only. Once per turn, if this attacking card destroys an opponent's monster by battle, you can change 1 face-up Defense Position monster your opponent controls to Attack Position, and attack it with this card.Junk WarriorLevel: 5, Attribute: Dark, Type: Synchro Effect Monster, SubType: WarriorATK: 2300, DEF: 1300Card Text: "Junk Synchron" + 1 or more non-Tuner monsters. When this card is Synchro Summoned, it gains ATK equal to the total ATK of all Level 2 and lower monsters you control.Junk DestroyerLevel: 8, Attribute: Earth, Type: Synchro Effect Monster, SubType: WarriorATK: 2600, DEF: 2500Card Text: "Junk Synchron" + 1 or more non-Tuner monsters. When this card is Syncro Summoned, you can select and destroy cards on the field, up to the number of non-Tuner monsters used as Synchro Material Monsters for this card.Road WarriorLevel: 8, Attribute: Light, Type: Synchro Effect Monster, SubType: WarriorATK: 3000, DEF: 1500Card Text: "Road Synchron" + 2 or more non-Tuner Monsters. Once per turn, you can Special Summon 1 Level 2 or lower Warrior or Machine-Type monster from your Deck.Turbo Warrior[Warrior/Synchro/Effect] Turbo Synchron + 1 or more non-Tuner monsters. When this card attacks a Level 6 or higher Synchro Monster, halve that monster's ATK until the end of the Damage Step. This card cannot be targeted by the effects of Level 6 or lower monsters.Ancient Fairy DragonLevel: 7, Attribute: Light, Type: Synchro Effect Monster, SubType: DragonATK: 2100, DEF: 3000Card Text: 1 Tuner + 1 or more non-Tuner monsters. Once per turn, you can Special Summon 1 Level 4 or lower monster from your hand. You cannot conduct your Battle Phase the turn you activate this effect. Once per turn, you can destroy a Field Spell Card. If you do, gain 1000 Life Points, and you can add 1 Field Spell Card from your Deck to your hand.Power Tool DragonLevel: 7, Attribute: Earth, Type: Synchro Effect Monster, SubType: MachineATK: 2300, DEF: 2500Card Text: 1 Tuner + 1 or more non-Tuner monsters Once per turn during your Main Phase, you can select 3 Equip Spell Cards from your Deck, have your opponent pick 1 of them at random and add it to your hand. Return the remaining cards to your Deck. If this card would be destroyed while equipped with an Equip Spell Card, you can send that card to the Graveyard instead.
Grete Wurm's birth name is Margarethe Bauer-Wurm.
Joanne Wurm's birth name is Joanne Marie Wurm.
Wurm Online happened in 2006.
Stephen Wurm was born in 1922.
Stephen Wurm died in 2001.
Erwin Wurm was born in 1954.
Julianne Wurm was born in 1964.
Theophil Wurm died in 1953.
Theophil Wurm was born in 1868.
Bernd Wurm was born in 1944.
Bernd Wurm is 182 cm.
Grete Wurm is 158 cm.