You can get downgraded SPR/DAT files from here: https://github.com/EPuncker/1098extended
- Copy them to client directory.
-
Download and compile pre-release 1.4.2 from here: https://github.com/Znote/forgottenserver/tree/1.4.2
-
Download otb from here: https://github.com/otland/forgottenserver/tree/master/data/items (you can also use items.xml from that folder for both your server and your rme)
-
Place items.otb in your 1.4.2 data/items folder.
- You will be creating maps in 12.x. This is the version you select in your RME.
- You can get RME for 12.85 from here: https://github.com/Zbizu/rme/releases
OTB: go to rme/data/1285 and replace items.otb file in that folder to the one you downloaded to get most up-to-date items.
Now you need to make RME accept that 12.86 otb
- Go to data/clients.xml and replace
<otb client="12.85" version="3" id="61"/>
to
<otb client="12.85" version="3" id="62"/>
Start RME and configure SPR/DAT for 12.85 path to your modified client directory
If you can't open a map, open it through import on a new file (make sure the new map is version 12).
More general instructions for those <1.4.2 from EPuncker
https://otland.net/threads/downgraded-12-x-assets-to-dat-spr-format.273902/
Notably the source edits for item.h, item.cpp, itemloader.h and items.cpp if <1.4.2.