CSIO - Random Encounters Sailing the Roglaroon

    Adding to the area specific Random Encounter tables I developed last year, I've updated by Cross System Source Table to read.

d20	Game System		d20	Other System
01-10	AD&D		01-10	Empire of the Petal Throne
11-15	ACKS		11-12	Call of Cthulhu
16	Gamma World		13-14	Dreamlands
17	Metamorphosis Alpha		15	Space 1889
18	(1-3) Runequest (4-6) Warhammer FRP		16	(1-3) Barsoom (4-6) Dark Eye
19-20	Other		17	Traveller
			18	Carcosa
			19-20	Infernum

    This time I'm going to use the technique from ACKS by dividing the encounters up types, in this case movement type.  Swimmers, any creature that can survive an indefinite period in the water; Flyers and Vessels, any object propelled across or under the surface of the water - these range from orcs using a log to swim across the river, to sailing ships to the Apparatus of Kwalish.  Swimmers will be 40% of the encounters, Flyers 10% and Vessels 50%.  (OK, I started here, but ended up adjusting it to take into account ocean creatures swimming further up the estuary, and the Death Tree, which tosses exploding cherries at you, couldn't resist invoking the Rule of Cool.) Any Swimmer that can dive under the water has the choice to avoid the encounter completely, so while 90% of the creatures in the estuary are Swimmers, many of them won't be seen.

  There are three encounter areas on the Roglaroon.
    Mermist Tail (Hexes 2623, 2624,2625, 2726)  From the City State to bend west of Caravan Crossing, this area dominated by the inflow of the Conqueror River and the waters leaching out of the Mermist Swamp.  The estuary changes width rapidly along this stretch. Saltwater species are rarely encountered in this area.

  Dearthwood Reach (Hexes 2825, 2925, 3024, 3124, 3223, 3323, 3422,3522)  The long straight stretch between the bend and the River Hagrost.  The water becomes increasingly saline towards the Hagrost end.  Saltwater species frequently are encountered in this area.

  Roglaroon Proper, aka The Gullet (Hexes 3522, 3521, 3520, 3519, 3518, 3517, 3516, 3615, 3614, 3613, 3713, 3712)  From the River Hagrost to the Mouth, the estuary is a body of salt water inhabited by ocean creatures.

Aquatic Creatures mentioned in The Guide to the City State of the Invincible Overlord, Booklet I, Installment J and Modron.
   Gods:
     Ran the Cruel, Goddess of Death CSIO p55
     Sea Goddess (Unnamed, so I assume Modron), CSIO p14
     Manannan - CSIO p33
     Modron, Goddess of Rivers, Modron p5

Monsters:
    Maelstrom, Giant Sea Snake works for the City State, Modron p 6
    Giant Octopus, CSIO p33
    Giant Leech, CSIO p28
    Giant Shark, Modron p26

Sophonts
    Kopoacinths, CSIO p 10
    Aquatic Elves, CSIO p17
    Mermen, CSIO p28, p36, p38
    Tritons, CSIO p28
    Sea Hag, CSIO  p38, Modron p5
    Sahuagin,  Modron p26

d20	Mermist Tail	Dearthwood Reach	Roglaroon Proper
01	AD&D Shedu	AD&D Kopoacinth	ACKS Sahuagin
02	AD&D Man, Merchant	ACKS NPC Party	AD&D Whale, Small
03	AD&D Man, Merchant	AD&D Man, Merchant	AD&D Man, Merchant
04	AD&D Man, Merchant	Gamma World Keeshin	AD&D Elasmosaurus
05	AD&D Gar, Giant	Runequest Fishermen	AD&D Man, Merchant
06	AD&D Sea Hag	AD&D Man, Merchant	AD&D Man, Pirate  (Orcs in small craft)
07	Warhammer Amoeba	Roglaroon Proper	AD&D Man, Merchant
08	AD&D Owl, Giant	Roglaroon Proper	Gamma World Menarl
09	AD&D Beaver, Giant	AD&D Man, Pirate	AD&D Triton
10	AD&D Man, Buccaneer	AD&D Otter, Giant	ACKS Pegasus
11	AD&D Nixie	AD&D Man, Warship	Dark Eye Krakenewt
12	AD&D Man, Buccaneer	ACKS Lizard Man	AD&D Octopus, Giant
13	ACKS Thief	ACKS Roc, Small	AD&D Man, Merchant
14	Warhammer Chameoleech*	AD&D Hippopotomus	AD&D Man, Buccaneer
15	Roglaroon Proper	Roglaroon Proper	Call of Cthulhu Shantak
16	AD&D Kaolinth	AD&D Man, Merchant	AD&D Shark, Giant
17	AD&D Man, Warship	Roglaroon Proper	AD&D Crocodile, Giant
18	AD&D Gar, Giant	Call of Cthulhu  Nightguants	AD&D Elf, Aquatic
19	Empire of the Petal Throne  Qu'uni	Metamorphosis Alpha Death Tree	ACKS Sea Dragon ("Maelstrom")
20	Infernum Malcubi	AD&D Merman	AD&D Man, Warship

Flyers are italicized

Roglaroon Proper - re-roll on that column for the encounter

* The Chameoleech is best described as a cross between a Giant Leech and a Mimic.

Mostly this is as I rolled it using the appropriate random tables.  Had to make some adjustments to bring the flyers in at the right numbers on the Mermist Tail, added in the Aquatic Elves, Sahuagin and Sea Hag from the canon, and I took the AD&D entry "Man, Pirate (Tribesmen with small craft)" and decided that that would represent Orcs of the Purple Claw.