Select the conditions that currently apply on your game and then press the Refresh table view button to update the table in accordance with your selections.

Old Chateau (2F right room)

Where?

It's the mansion at the top of Eterna Forest. Enter the forest from Eterna City, and walking just a bit in will get you to where a few Cuttable bushes above you hide this abandoned manor.

Notes

The room names are quite confusing, but it doesn't matter much since the same Pokémon are found in all of them but one, the "2F right room" with the GBA slot Gengar, which is the fourth room from the left on the second-floor corridor (it's the one with the picture on the walls whose eyes disappear when you're in front of it).

The "2F left room", of course, contains the TV that you can interact with (after getting the National Pokédex if you're playing D/P, but whenever you like in Platinum) to battle a Rotom (level 30 in D/P, level 20 in Platinum).

How to read this table

The bolded horizontal headings stand for the main condition that affects the following slots; the big cells on the left side describe which circumstances must apply for the rows they span to be active. The percentages tell you the chance of a Pokémon from this slot (row) appearing for any given wild encounter, provided the condition on the left holds.

Each condition (i.e. each bolded horizontal heading) always has the same number of slots active. Usually it's two, though the radio condition in HG/SS has four slots and tables can have any number of static slots combined under one blank condition (-) for less cluttered viewing. This is reflected in the slots usually being displayed in pairs, which except for the aforementioned HG/SS radio conditions always means that only one pair is active at any one time. (For the radio conditions, it's either two pairs or one quadruple.)

If all this confuses you, and I don't blame you, just set the conditions in the form on the right to what actually applies for you right now and press the Refresh Table View button, which will hide all the inactive slots and leave only the Pokémon you're actually going to be seeing. This will also recalculate the statistics at the bottom of the table accordingly.

Walking in tall grass or a cave

ConditionRarityDiamondPearlPlatinum
-
Always 20% Gastly lv. 12 Gastly lv. 12 Gastly lv. 14
20% Gastly lv. 12 Gastly lv. 12 Gastly lv. 15
Always 10% Gastly lv. 14 Gastly lv. 14 Gastly lv. 14
10% Gastly lv. 14 Gastly lv. 14 Gastly lv. 15
10% Gastly lv. 13 Gastly lv. 13 Gastly lv. 16
10% Gastly lv. 13 Gastly lv. 13 Gastly lv. 17
Always 5% Gastly lv. 13 Gastly lv. 13 Gastly lv. 16
5% Gastly lv. 13 Gastly lv. 13 Gastly lv. 17
Gen 3 game in slot 2
No game in slot 2 4% Gastly lv. 16 Gastly lv. 16 Gastly lv. 17
4% Gastly lv. 16 Gastly lv. 16 Gastly lv. 17
Ruby in slot 2 4% Gengar lv. 16 Gengar lv. 16 Gengar lv. 17
4% Haunter lv. 16 Haunter lv. 16 Gastly lv. 17
Sapphire in slot 2 4% Gengar lv. 16 Gengar lv. 16 Gengar lv. 17
4% Haunter lv. 16 Haunter lv. 16 Gastly lv. 17
Emerald in slot 2 4% Gengar lv. 16 Gengar lv. 16 Gengar lv. 17
4% Haunter lv. 16 Haunter lv. 16 Gastly lv. 17
Firered in slot 2 4% Gengar lv. 16 Gengar lv. 16 Gengar lv. 17
4% Haunter lv. 16 Haunter lv. 16 Gastly lv. 17
Leafgreen in slot 2 4% Gengar lv. 16 Gengar lv. 16 Gengar lv. 17
4% Haunter lv. 16 Haunter lv. 16 Gastly lv. 17
-
Always 1% Gastly lv. 15 Gastly lv. 15 Gastly lv. 17
1% Gastly lv. 15 Gastly lv. 15 Gastly lv. 17
Statistics
Level range 14-17 12-16 12-16
Average EXP
per Pokémon
215.65 186.62 186.62
Average effort
per 100 encounters
106 Special Attack
110 Special Attack
110 Special Attack

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