RO Patcher Lite (c) 2009-2022 Ai4rei/AN

Replacement for Gravity's RO patcher. Works faster and doesn't consume your entire memory for just seeing it crashing, aside from this, it works almost exactly as the official patcher does, so that it shouldn't break, unless Gravity changes something vital to their patcher. It is free of any cost and works on every 32-bit and 64-bit Microsoft* Windows* platform.
News
[2022-07-01] Release 4.1.6.1297
This release fixes mirror server fallback from a different mirror server not working correctly.
[2022-06-15] Release 4.1.5.1292
This release fixes reusage of waste in GRF archives was not enabled (ever since its introduction in 4.0.0). Depending on amount of wasted space, some archives may shrink in response to being updated. It also fixes the /testpak command reporting Sakray/Test archives as corrupted.
[2021-11-05] Release 4.1.4.1282
This release adds support for the new, short-lived (2021-11-03 ~ 2021-11-17) kRO Sakray server. This is a different server from the one removed in 4.1.2 and requires a new full client. There is no mirror support for this one and it is released only as part of the bundle package.
[2021-11-04] Release 4.1.3.1277
This release fixes an assertion when applying optimized patches.
[2021-10-30] Release 4.1.2.1276
This release improves performance on x64 and WINE and removes kRO RE support, because the patch server is gone. You can still update kRO RE with the previous version for a limited time by using the "Always use mirrors" option from the window menu.
Older entries
Can be found in the news archives.
Mirrors
As some countries seem blocked from using the official kRO patch server, the patcher offers tamper-resistant patch download from community contributed mirrors as fall-back mechanism from version 2.4.5 onwards. Anyone willing is free to apply for inclusion into the list of approved mirrors. Patches served through mirrors are subject to delayed release due to technical reasons.
Download
Do not provide mirrors for the downloads below, you will end up with an outdated version quickly. Do not hot-link to the downloads either for the very same reason. Link to this section. Thank you.
Latest release
kRO RAG
4.1.6.1297 (140KB, 32-bit)
4.1.6.1297 (168KB, 64-bit)
Bundle ( bRO, iRO, jRO, kRO & twRO )
4.1.6.1297 (1010KB, 32-bit)
4.1.6.1297 (1236KB, 64-bit)
Previous versions
Use of these is at your own risk. They are mainly for archaeological research.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
RagnarokOnline, Ragnarok-related graphics and materials are copyright © 2002-2022 Gravity Co., Ltd. & Lee Myoungjin.