Alternate Dimension Generator

For the times when the party open a gateway to Somewhere, and you have no clue what that is. Or simply when you want to start a new campaign and want a surprise.

Step 1: First Impressions

How long has the sapient inhabitants been present here?
1d20...
1. Millenias, multiplied by 1d10.
2. Millenias
3. Centuries
4. Decades
5. Years
6. Months

Step 2: Setting Changes

Number of Changes
1-2. No change.
3-5. One change.
6. One change, roll again. 

What Changes?
1. Magic.
   1. Is half as effective (range, duration, damage, etc).
   2. Is twice as effective.
   3. One type of magic is enhanced. Roll on Magic Type.
   4. All magic here is intimately tied to one Element, roll on the Elements list.
   5. One type of magic won't work here. Roll on Magic Type.
   6. Only one type of magic works here. Roll on Magic Type.
2. Planar Will. Take a random personality trait from your favorite NPC Generator. Interactions on this plane that emulate this trait are more likely to be successful (e.g Rebellious )
3. Supernatural Ability Infusion. Roll for a random spell; its effect applies to everything in this dimension. E.g, if you roll Read Thoughts, everyone can read each other's thoughts, while Animate Object could mean a dimension where all objects are sentient.
4. Theme. Roll on Elements list and then the Applies To table.
5-6. Game Rule

Magic Type
1. Necromancy.
2. Evocation/destruction.
3. Conjuration/summoning.
4. Illusion/glamour.
5. Enchantment.
6. Transformation.
7. Warding/binding.
8. Divination/scrying.
9. Artifice.
10. Restoration/healing.


Elements

1	Acid	21	Despair	41	Heat	61	Nature	81	Stars
2	Aether	22	Dimension	42	History	62	Oil	82	Steam
3	Air	23	Doom	43	Hope	63	Pain	83	Steel
4	Anger	24	Dust	44	Ice	64	Perception	84	Stone
5	Ash	25	Earth	45	Iron	65	Plane	85	Storm
6	Avarice	26	Ember	46	Justice	66	Plant	86	Sun
7	Balance	27	Energy	47	Knowledge	67	Poison	87	Terror
8	Blight	28	Envy	48	Lead	68	Quicksilver	88	Time
9	Blood	29	Fear	49	Lies	69	Revulsion	89	Treasure
10	Bone	30	Fire	50	Life	70	Rot	90	Truth
11	Bones	31	Fog	51	Light	71	Salt	91	Vanity
12	Brimstone	32	Force	52	Lightning	72	Shadow	92	Venom
13	Clay	33	Fury	53	Lore	73	Sight	93	Vigor
14	Cloud	34	Glory	54	Love	74	Silver	94	Void
15	Copper	35	Gluttony	55	Lust	75	Smoke	95	Water
16	Cosmos	36	Gold	56	Metal	76	Soil	96	Will
17	Dark	37	Greed	57	Might	77	Soul	97	Wind
18	Death	38	Hate	58	Mist	78	Souls	98	Wisdom
19	Deceit	39	Hatred	59	Moon	79	Sound	99	Wood
20	Despair	40	Health	60	Mud	80	Spirit	100	Youth

Applies To (d16)
Roll a D6 and a D8, add 8 if the D6 scores 4+.
1. Seasonal Changes
2. Landforms, terrain, geology
3. Streams, rivers, lakes
4. Predators, grazers
5. Rodents, insects, birds
6. Wind, Rain, Clouds, Atmosphere
7. Sun, Light, Temperature
8. Trees, plants, Grasses
9. Security, Warfare
10. Connection, Sex, Vice
11. Food, the Hearth
12. Games, Play, Fashion
13. Agriculture, Industry
14. Art, Architecture
15. Religion, Learning
16. Rulership, Laws, Mores



Step 3: Fleshing It Out

Culture
Use Throne of Salt's Planar Culture Generator to flesh a culture out. Select 3 out of the 25 ones.

Language
It sounds like this: Vulgar.
Generate a random one, then as the PCs talk to a native, read from the sentence example. The language name also works as the name of the Dimension.

D6:
1. The local language is considered to be very difficult/alien to learn. (-3 to Language checks if you are using LoTFP.)

2-3. The local language is considered exotic relative to a language the party knows. (-2 to Language checks if you are using LoTFP.)

4-5. The local language is considered to be related to a language the party knows, but it might be using foreign words and/or grammar. (-1 to Language checks if you are using LoTFP.)

6. The language is identical to a language the party knows, though some words may be pronounced differently. 

Cuisine d6
1. Mixed.
2. Dominantly Surf.
3. Dominantly Turf.
4. Dominantly Vegetarian.
5. Dominantly Vegan.
6. Exotic.


Step 4: So Where are We and What's Going On?

The Local Terrain Is (roll twice, combine). Credits to Spwack at Meandering Banter.

1. Plains
2. Mountains
3. Forests
4. Wet
5. Dry
6. Weird

...and You emerge...
1. In a Dungeon.
2. In a Lair.
3. In a Settlement, 50 % chance of being inside a building.
4. By a Wonder.
5. By/on top of a beneficial landmark.
6. By/on top of a hazardous landmark.

Then use this narrative generator and make an encounter check.
Use your preferred reaction table.