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Hello! Here is a look at the design of Corrida Colosseum Mafia! It's a game based on One Piece, a Manga/Anime series by Eichiro Oda.
This game in particular is based on Fran's Greed island Mafia, but with a twist. Fran's design was unique in that it made players make their own roles within the restrictions of their "Nen Type". Corrida Colosseum takes this fun format but adds one chaotic ingredient: After all the roles are made, they get randomly swapped between all players.
Seems like a mess at first, but with a few tweaks I think we got something that could be as fun as it is wacky.
Game Roles
Players make one role based on the guidelines given, and then they get swapped at random with all other players
In this game, Roles can have two types of abilities.
-"Fighting" Abilities. Powers that are going to be randomly swapped at the start of the game
-"Crew Talent" Abilities. Power that stay with the Player that made the role.
Every player gets to make a "Fighting" ability, but only a handfull of players get to make a "Crew Talent" ability.
-"Crew Talent" Abilities will remain with the original player who made the role, but they WON'T be active for Scum and Town until Day 3.
-Neutrals "Crew Talent" Abilities will be active from Game start.
Game Setup
20 Players: 4 Scum, 1 "Killing" Neutral, 1 "Mission" Neutral, 14 Town.
-Scum wins when they get control over 50% of the votes.
-Killing Neutral wins when they fulfill their victory condition based on killing other players.
-Mission Neutral wins when they fulfill their victory condition based on NOT killing other players.
-Town wins when all scum members are defeated.
-Scum will always have access to the faction kill, but they only get one command per night, so they can either use their faction kill or their individual command.
-All players can only choose between their Fighting Ability commands or their Crew Talent Ability commands per phase, they can't do both on the same Day or Night phase.
Game Start
Before the start of the game
-Players will be told about Fighting abilities, but not about Crew Talents. This is to encourage players to speculate about the awakened abilities in the game thread.
-All players will be given a Fighting ability and, if applicable, a Crew Talent. We won't tell players that the Crew Talent wasn't swapped until its activated on a mod post at the start of Day 3. This is to encourage players to design powers that might be used against them if swapped and speculate on them.
-Players have to design their own role based on the restriction given, and the game runners can restrict them so they can be fun and fair.
-Once all roles are made, they are going to be swapped at random between all players using a random number generator. It'll be truly random, so there is a chance the player that made a role might get their own role back.
-In case a role is detrimental for the player's alignment of the player that got it, the game runner is able to modify it slightly to keep the spirit of the role but make it useful for said aligment. This particular rule will be public on the game OT. But this rule is a last case scenario, since we want to interfere with the made roles as little as possible.
-Players will be given a new role pm with their swapped role. No swapped role given will have mention of the "Crew Talent" ability, except for neutrals who get access to it from Game Start.
In-Game Events.
The Game will Use 48 hours for Day phases, a 24 hour Night phase
At the start of Day 1, it's going to be announced that all players had their Roles Swapped.
At the start of Day 3, it's going to be announced that players have Awakened their latent powers.
Game Balance.
-As chaotic as the game might seem, it has a safeguard to keep a slight squirt of balance. That is mostly in the way abilites are distributed.
-In total, there are 20 players and 10 types of Fighting Abilities. That means that, no matter what, there are two types of players per game, making for a big variety of powers and gameplay style.
-Players are going to be enouraged to make their roles as balanced as possible due to not knowing who is going to end up with their role.
-Players, are the start of the game, are going to be aware of two roles at the start of the game: The one they got and the one they make. This will encourage speculation without breaking balance due to the rule that lets gamerunners modify roles in case is needed.
-More importantly, "Crew Talents" abilities are distributed so, no matter what roles are swapped, the scum, neutral and town members can still function and work towards their role no matter how badly the role distribution screws them over.
-The Day 3 restriction for "Crew Talents" abilities and not telling players about them until then is to encourage players to use their swapped roles as given and not wait for the Awakened ability to activate.
Game Flavour
One Piece is a huge world mostly filled with water and islands where Pirates and Marines fight for control over the oceans. People can get mysterious abilities by eating the Devil Fruit, that is said to give them the power of the Devil himself, but at the cost of not been able to swim ever again. Powers can be as weird as varied as turning your body to smoke, multiplying your weight by 1000, or gaining control over animals.
Corrida Colosseum is a location in One Piece that is heavily inspired in the Roman Colosseum, where warriors from all the world come to prove their might. But this time, the Warlord of the Sea Trafalgar Law has made a surprise appearance and has used the power of his Ope Ope Fruit to swap the souls of all the fighters in the arena. That's right, everyone got their body swapped and now have to fight with powers that don't belong to them. Can they survive the skirmish and win their bodies back?
Extra notes
Fran was a huge inspiration for this game, and Geno has been nice enough to look at the first draft and make notes and suggestions, thanks guys!

This game in particular is based on Fran's Greed island Mafia, but with a twist. Fran's design was unique in that it made players make their own roles within the restrictions of their "Nen Type". Corrida Colosseum takes this fun format but adds one chaotic ingredient: After all the roles are made, they get randomly swapped between all players.
Seems like a mess at first, but with a few tweaks I think we got something that could be as fun as it is wacky.
Game Roles
Players make one role based on the guidelines given, and then they get swapped at random with all other players
In this game, Roles can have two types of abilities.
-"Fighting" Abilities. Powers that are going to be randomly swapped at the start of the game
-"Crew Talent" Abilities. Power that stay with the Player that made the role.
Every player gets to make a "Fighting" ability, but only a handfull of players get to make a "Crew Talent" ability.
-"Crew Talent" Abilities will remain with the original player who made the role, but they WON'T be active for Scum and Town until Day 3.
-Neutrals "Crew Talent" Abilities will be active from Game start.
Fighting Ability | Abilities to shuffle at the start of the game |
Conqueror Haki | Communicative: Roles that can communicate with other players |
Armament Haki | Killing: Roles that add kills or modifiers to kills |
Artificial Zoan | Power Gaining: Roles that can gain abilities when they fulfill conditions |
Observation Haki | Informative: Roles that can send information to other players |
Zoan | Support: Roles that can support another role |
Mythical Zoan | Protective: Roles that can protect another player |
Future Vision Haki | Investigative: Roles that can investigate another players |
Logia | Multipowers: Roles that have more than one ability |
Special Paramecia | Manipulators: Roles that can manipulate other players |
Paremecia | Redirective: Roles that can redirect actions |
Crew Talent | Extra Ability Starting D3, Neutrals D1 (Won't switch), |
Thief/Musician | Manipulators/Redirective |
Sniper/Swordsman | Investigative/Killing |
Cook/Shipwright/Craftman | Power gaining/Multipower |
Doctor/Helmsman | Protective/Support |
Scientist/Scholar/Musician | Communicative/Informative |
Captain | Free |
Game Setup
20 Players: 4 Scum, 1 "Killing" Neutral, 1 "Mission" Neutral, 14 Town.
-Scum wins when they get control over 50% of the votes.
-Killing Neutral wins when they fulfill their victory condition based on killing other players.
-Mission Neutral wins when they fulfill their victory condition based on NOT killing other players.
-Town wins when all scum members are defeated.
-Scum will always have access to the faction kill, but they only get one command per night, so they can either use their faction kill or their individual command.
-All players can only choose between their Fighting Ability commands or their Crew Talent Ability commands per phase, they can't do both on the same Day or Night phase.
Roles | Members | Shuffled Day 1 | Active Day 3 (Won't shuffle) | Shuffled Info | Active Day 3 Info (Won't shuffle) |
4 Scum | Scum 1 | Conqueror Haki | Captain | Communicative | Free |
1 Killing Neutral | Scum 2 | Special Paramecia | Manipulator | ||
1 Mission Neutral | Scum 3 | Logia | Sniper/Swordsman | Multipower | Investigative/Killing |
14 Town | Scum 4 | Paremecia | Doctor/Helmsman | Redirective | Protective/Support |
Killing Neutral | Armament Haki | Sniper/Swordsman | Killing | Investigative/Killing | |
Mission Neutral | Artificial Zoan | Cook/Shipwright/Craftman | Power Gaining | Power gaining/Multipower | |
Town 1 | Conqueror Haki | Captain | Communicative | Free | |
Town 2 | Armament Haki | Doctor/Helmsman | Killing | Protective/Support | |
Town 3 | Artificial Zoan | Power Gaining | |||
Town 4 | Observation Haki | Scientist/Scholar/Musician | Informative | Communicative/Informative | |
Town 5 | Observation Haki | Informative | |||
Town 6 | Zoan | Cook/Shipwright/Craftman | Support | Power gaining/Multipower | |
Town 7 | Zoan | Support | |||
Town 8 | Mythical Zoan | Sniper/Swordsman | Protective | Investigative/Killing | |
Town 9 | Mythical Zoan | Protective | |||
Town 10 | Future Vision Haki | Thief/Musician | Investigative | Manipulators/Redirective | |
Town 11 | Future Vision Haki | Investigative | |||
Town 12 | Logia | Multipower | |||
Town 13 | Special Paramecia | Manipulator | |||
Town 14 | Paremecia | Redirective |
Game Start
Before the start of the game
-Players will be told about Fighting abilities, but not about Crew Talents. This is to encourage players to speculate about the awakened abilities in the game thread.
-All players will be given a Fighting ability and, if applicable, a Crew Talent. We won't tell players that the Crew Talent wasn't swapped until its activated on a mod post at the start of Day 3. This is to encourage players to design powers that might be used against them if swapped and speculate on them.
-Players have to design their own role based on the restriction given, and the game runners can restrict them so they can be fun and fair.
-Once all roles are made, they are going to be swapped at random between all players using a random number generator. It'll be truly random, so there is a chance the player that made a role might get their own role back.
-In case a role is detrimental for the player's alignment of the player that got it, the game runner is able to modify it slightly to keep the spirit of the role but make it useful for said aligment. This particular rule will be public on the game OT. But this rule is a last case scenario, since we want to interfere with the made roles as little as possible.
-Players will be given a new role pm with their swapped role. No swapped role given will have mention of the "Crew Talent" ability, except for neutrals who get access to it from Game Start.
In-Game Events.
The Game will Use 48 hours for Day phases, a 24 hour Night phase
At the start of Day 1, it's going to be announced that all players had their Roles Swapped.
At the start of Day 3, it's going to be announced that players have Awakened their latent powers.
Game Balance.
-As chaotic as the game might seem, it has a safeguard to keep a slight squirt of balance. That is mostly in the way abilites are distributed.
-In total, there are 20 players and 10 types of Fighting Abilities. That means that, no matter what, there are two types of players per game, making for a big variety of powers and gameplay style.
-Players are going to be enouraged to make their roles as balanced as possible due to not knowing who is going to end up with their role.
-Players, are the start of the game, are going to be aware of two roles at the start of the game: The one they got and the one they make. This will encourage speculation without breaking balance due to the rule that lets gamerunners modify roles in case is needed.
-More importantly, "Crew Talents" abilities are distributed so, no matter what roles are swapped, the scum, neutral and town members can still function and work towards their role no matter how badly the role distribution screws them over.
-The Day 3 restriction for "Crew Talents" abilities and not telling players about them until then is to encourage players to use their swapped roles as given and not wait for the Awakened ability to activate.
Game Flavour
One Piece is a huge world mostly filled with water and islands where Pirates and Marines fight for control over the oceans. People can get mysterious abilities by eating the Devil Fruit, that is said to give them the power of the Devil himself, but at the cost of not been able to swim ever again. Powers can be as weird as varied as turning your body to smoke, multiplying your weight by 1000, or gaining control over animals.
Corrida Colosseum is a location in One Piece that is heavily inspired in the Roman Colosseum, where warriors from all the world come to prove their might. But this time, the Warlord of the Sea Trafalgar Law has made a surprise appearance and has used the power of his Ope Ope Fruit to swap the souls of all the fighters in the arena. That's right, everyone got their body swapped and now have to fight with powers that don't belong to them. Can they survive the skirmish and win their bodies back?

Extra notes
Fran was a huge inspiration for this game, and Geno has been nice enough to look at the first draft and make notes and suggestions, thanks guys!
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