- Impact was free, built on the open-source ClientAPI framework, and stopped moving around 2020. It is stuck on MC 1.12.2.
- Opal is $8.99, closed-source, and actively shipping for MC 26.2 with 70 modules.
- Impact's headline feature was Baritone-powered pathfinding automation for 2b2t-style anarchy servers. Opal has nothing like it.
- Opal is tuned for BedWars/SkyWars-style minigame combat, with a quieter set built to hold up across most other servers.
- Different tools for different jobs: automation on anarchy servers is Impact's lane, actively updated minigame combat is Opal's.
At a glance
| Feature | Opal | Impact |
|---|---|---|
| Price | $8.99 | Free, with an optional donor tier |
| Interface | Custom glass UI engine + GraalJS/Yoga | GUI and command system from the ClientAPI framework |
| Features | 70 modules across combat, movement, visual, world, utility | Baritone pathfinding automation plus combat/render staples, no published module count |
| Tuned for | BedWars/SkyWars-style minigame combat | 2b2t-style anarchy servers |
| Quiet (ghost) set | ||
| Setup | Launcher, login, play | Standalone launcher/tweaker, legacy build |
| Updates and support | Actively maintained, 2026 | Legacy since around 2020, ClientAPI archived 2019 |
| Minecraft version | MC 26.2 | MC 1.12.2 |
Free framework, paid product that keeps shipping
Impact cost nothing beyond an optional donor tier, and while the Impact client itself was closed-source, the ClientAPI framework it was built on is Apache-2.0 and public. That is a genuinely good deal if you want free and do not mind that nobody has touched it in years.
Opal costs $8.99 and is closed-source end to end, but it is still being worked on. It shipped for MC 26.2 in 2026, carries 70 modules across combat, movement, visual, world, and utility, and comes with a launcher instead of a manual tweaker install. You are paying for a client that keeps pace with the current version of the game, not one frozen on a release from years ago.
Baritone automation vs minigame combat
Impact's headline feature was bundling leijurv's Baritone pathfinding bot directly into the client, giving goal-based navigation, mining, and follow automation for grinding on 2b2t-style anarchy servers. Nothing in Opal's module list resembles that, and it never tried to. If pathfinding automation is what you are after, Impact, or its ClientAPI-based successors, is the actual reference point here, not Opal.
Opal points the other way. Its loud set (flight, scaffold, aggressive combat) is built for BedWars/SkyWars-style minigame fights, and its quieter set is built to hold up across most other servers. It is a combat client, not an automation bot, and it was never trying to be one.
A client that stalled vs one that is still current
Impact is legacy. ClientAPI was archived read-only in 2019, and the client's own development wound down around 2020, so it stays locked to MC 1.12.2. That is a real cost if you play current Minecraft: no updates, no new-version support, nothing changing. Six years is a long time for a version number to sit still.
Opal tracks the current release, MC 26.2, and is actively maintained in 2026, with a launcher, a scripting layer built on GraalJS, and Discord Rich Presence integration. If you want a client that will still be getting updates next year, that is the side of this comparison to stand on.
Credit where it is due
Building Impact on top of a separately maintained, Apache-2.0 framework was a smart piece of architecture. ClientAPI gave multiple clients a shared, stackable base, complete with its own event bus, GUI, and command system, and Impact was the client that proved the model and popularized Baritone along with it. That open-framework, closed-client split is worth crediting even where the flagship client itself did not survive.
When Impact is the better call
Be honest about what you actually play.
Pros
- You play 2b2t or another anarchy server and want Baritone-style pathfinding automation
- You want free, full stop, and do not mind that nothing has shipped since around 2020
- You want to read or build on an open modding framework rather than a closed one (ClientAPI is Apache-2.0)
- You are already set up on MC 1.12.2 and have no interest in moving off it
Cons
- No updates since around 2020, and ClientAPI itself has been archived read-only since 2019
- Locked to MC 1.12.2 with no path onto a current version
- No published module count, no launcher, no ongoing support channel to fall back on
- Built for anarchy grinding, not minigame combat, so it was never really a Hypixel minigame option in the first place
If pathfinding automation on an anarchy server is the job, Impact's lineage is still the name to know. If the job is a current client with combat tuned for BedWars/SkyWars-style play, a scripting layer, and a launcher that just works, and $8.99 is nothing to you, that is Opal.
FAQ
No. ClientAPI was archived in 2019 and Impact's own development wound down around 2020. It stays on MC 1.12.2 and is documented as legacy.
No. Opal's 70 modules cover combat, movement, visual, world, and utility categories built around minigame play. There is no pathfinding bot like Baritone in its feature list.
Yes. It was distributed free with an optional donor tier. The client itself was closed-source, but the ClientAPI framework underneath it was Apache-2.0 and public.
$8.99, one time.
The client is documented as legacy with development stalled around 2020, so treat it as an unmaintained, period-locked build on MC 1.12.2 rather than something with active support.
Lifetime license, instant delivery, no subscription
Disclaimer
Independent comparison. Impact is a trademark of its owners; its use here is nominative and implies no affiliation or endorsement. Competitor details are accurate to the best of our knowledge as of 2026 and may contain errors.
