System 5 is an open-source tabletop role-playing game system designed for high compatibility with the most popular RPG systems of 2014 and 2024.

Outline

Character Creation

Ancestry

Background

Class

Skills

Feats

Equipment

Playing the Game

Task Resolution

Combat

Magic and Powers

Advancement

Game Mastering

Monster Creation

List of Monsters

Treasure and Loot

Magic Item Creation

Other Systems

• System 5: pure 5e (2014 and 2024 compatible)
• System 5++: 5e with optional rules and expansions

System 5++

Subclasses

Subclass abilities will be converted to feats, allowing for more flexible character builds. Feats will be available every 2nd level instead of every 4, to roughly equal the number of abilities gained from subclasses.

Subclass feats will be adjusted for balance and multiclass/multisubclass compatibility. For instance:

• Feats that grant a passive bonus (like +Cha to melee damage) will be of a type the prevents stacking with similar bonuses from other feats.
• Feats that grant new abilities (like a new spell or attack) will have prerequisites to ensure they fit the character's build.
• Some subclass features that are too powerful or complex to convert into feats may be omitted or significantly altered.