The basic idea is that when you make your character and choose their class, you also choose or roll for a 'Profession', which provides a small, thematically appropriate boon. Four of these professions are based on the four standard classes, while the others are based on classes from modern D&D. This way you can simulate most of the possible character concepts that exist in modern D&D. Here are some examples:
Paladin = Fighter + Acolyte
Druid = Cleric + Ranger
Dwarf Cleric = Dwarf + Acolyte
Elf Rogue = Elf + Burglar
Halfling Bard = Halfling + Bard
Some of the professions are restricted for certain classes.
Professions
Roll or chooseFighter d8 | Cleric d6 | Magic-User d6 | Specialist d8 | Dwarf d6 | Elf d6 | Halfling d8 | |
Warrior |
-
|
1
|
1
|
1
|
-
|
-
|
1
|
Acolyte |
1
|
-
|
-
|
2
|
1
|
-
|
2
|
Apprentice |
2
|
-
|
-
|
3
|
-
|
-
|
3
|
Burglar |
3
|
2
|
2
|
-
|
2
|
1
|
4
|
Barbarian |
4
|
3
|
3
|
4
|
3
|
2
|
5
|
Ranger |
5
|
4
|
4
|
5
|
4
|
3
|
6
|
Monk |
6
|
5
|
5
|
6
|
5
|
4
|
7
|
Bard |
7
|
6
|
6
|
7
|
6
|
5
|
8
|
Warrior
- +1 to hit
- +1 hp
Acolyte
- Learn three 1st level Cleric spells, prepare/cast
one per day
- Use Cleric scrolls
Apprentice
- Learn two random 1st level MU spells, prepare/cast
one per day
- Use MU scrolls
Burglar
- +1-in-6 to Tinker, Sleight of Hand, Stealth skills
Barbarian
- Rage mode
- Max damage all melee attacks
- Must attack something every round
- Must pass poison save to turn off
- Take 1 damage per round
- Remain conscious until -3hp
- Max damage all melee attacks
Ranger
- +1-in-6 to Bushcraft skill
- Animal companion
Monk
- Unarmed attacks deal 1d6 damage
- Perform one slightly impossible martial arts maneuver per
day
Bard
- Musical proficiency
- Followers have +1d4 morale
- +1 Charisma
Notes
This assumes you are using LotFP rules. If you're using a different ruleset it shouldn't be too hard to convert for. An important thing to remember would be that in rulesets where armour and weapon usage is restricted based on class, people who choose the Warrior profession should have the same weapon/armour proficiency as Fighters.