Ars Magica vs Dungeons & Dragons
Compare Ars Magica and Dungeons & Dragons side by side. See differences in complexity, dice, genre, cost, and more.
| Ars Magica | Dungeons & Dragons | |
|---|---|---|
| Genre | Fantasy, Historical | Fantasy |
| Tags | Crunchy, Freeform Magic, Collaborative, Simulation, CC-Licensed Rules, Roll to Cast, Domain Management, Social Intrigue | Tactical, Heroic, Character Building, High-Fantasy, Classic Fantasy, Vancian Casting, Ascending AC |
| Core Mechanic | Roll a d10 + Characteristic + Ability against an Ease Factor. Simple die rolls count the result at face value; stress die rolls on a 1 double the next roll (cascading), while a 0 risks a botch by rolling additional botch dice. Magic uses Technique + Form (five verbs like Creo, Perdo combined with ten nouns like Ignem, Corpus) to define any spell effect. Formulaic spells are pre-learned, spontaneous spells can attempt any Technique + Form combination by halving the casting total, and ritual spells handle large-scale or permanent effects. | Make a D20 Test by rolling d20, adding relevant modifiers, and comparing the total to a target number. Ability checks, saving throws, and attack rolls use this procedure. Advantage and disadvantage use two d20s and keep the higher or lower result. |
| Dice | d10 | d20 |
| Complexity | High | Medium |
| Accessibility | Medium | Very High |
| Runnability | Very High | Very High |
| License | CC BY-SA 4.0 | CC BY 4.0 (SRD); core books proprietary |
| Third-Party Publishing | Not yet researched | Commercial publishing allowed — Open license |
| Summary only, not legal advice. Check current terms before publishing. | ||
| Cost | $ | Free |
| Publisher | Atlas Games | Wizards of the Coast |
| Year | 2004 | 2024 |
| Best For | Groups who want a deeply researched medieval European setting with the most flexible magic system in tabletop RPGs and troupe-style play where multiple characters share the spotlight across seasons of game time. | Groups who want heroic fantasy with configurable tactical combat, broad character options, and campaigns that span multiple levels. |
| Highlights | Technique + Form magic system allows freeform spell creation by combining five verbs with ten nouns. Troupe-style play rotates magi, companions, and grogs so every player has multiple characters. Covenant management adds strategic play between adventures. Mythic Europe setting blends historical accuracy with medieval folklore and theology. | Advantage and disadvantage resolve common situational effects by selecting the higher or lower of two d20 rolls. Backgrounds, classes, subclasses, and feats distribute character choices across creation and advancement. Weapon Mastery gives qualifying weapon users distinct tactical effects without replacing the action economy. |
| Considerations | Core rulebook is dense at 240 pages with extensive magic subsystems that require study before play. Laboratory rules, seasonal advancement, and covenant management demand significant bookkeeping. The troupe-style format requires buy-in from the whole group. Combat is deliberately secondary to magic and social play. | Spell preparation, spell slots, class features, and conditions create several interacting resources for players to track. High-level characters combine many spells and features, increasing adjudication work for the DM. Bastions add a separate downtime procedure for campaigns that use the stronghold rules. |