- Tenacity was a big MC 1.8.9 client, 86 modules and its own scripting engine, sold on intent.store from 2020 to 2024. It is marked abandoned now and is not for sale.
- Opal is $8.99, actively maintained, and built for MC 26.2, the version people are actually playing.
- Tenacity shipped more modules and got to in-client scripting first. Opal ships fewer modules, all built fresh for the current game, with a deeper GraalJS scripting and UI runtime on top.
- Unless you already have a working 1.8.9 Tenacity setup, Opal is the only one of the two you can actually buy and open today.
At a glance
| Feature | Opal | Tenacity |
|---|---|---|
| Price | $8.99 | No longer sold (intent.store closed out in 2024) |
| UI | A custom glass UI engine on Blaze3D, plus a GraalJS/Yoga UI runtime | Three ClickGui styles (compact, dropdown, modern) |
| Modules | 70 | 86 |
| Tuned for | BedWars/SkyWars-style minigame combat, most servers | Hypixel-era 1.8.9 PvP, Watchdog specifically |
| Setup | Launcher, login, play | Standalone jar, no active distribution today |
| Updates and support | Actively maintained | Abandoned since 2024 |
| Minecraft version | MC 26.2 | MC 1.8.9 |
Actively maintained vs abandoned since 2024
Tenacity's own record marks it abandoned, and it was sold through intent.store across 2020 to 2024. Whatever it cost back then, you cannot buy it today, and nobody is shipping fixes for it against anything current.
Opal is under active development for MC 26.2 right now, distributed through a launcher that handles login and updates for you. $8.99 buys a client someone is still patching, not a snapshot of a client from a marketplace that closed its doors.
MC 26.2 vs a client frozen on 1.8.9
Tenacity never left MC 1.8.9. That was the right call for its era, and the client leaned into it hard, down to a ViaLoadingBase wrapper just to let an old client talk to newer servers. It is still a 1.8.9 client, full stop.
Opal runs on MC 26.2 as a Fabric mod. If you are playing on the version people actually run today, Tenacity is not an option, no matter how deep its 1.8.9 module set went.
Module count: 86 vs 70, and what is actually in each pile
Tenacity's 86 modules span combat, movement, player, exploit, and misc, plus a render category alone that runs to roughly 32 entries, several of which are reskins of the same TargetHUD overlay in different visual themes rather than distinct functionality. It is a genuinely large roster for a 1.8.9-era client, and that earns real credit.
Opal's 70 modules split across combat, movement, visual, world, and utility, built for MC 26.2 rather than carried forward from an older codebase. Fewer total modules, sure. None of them are a fourth coat of paint on the same HUD.
Two clients, one bet on scripting, a decade apart
Tenacity shipped its own in-client JavaScript scripting engine back when that was unusual for a paid utility client, letting users extend it without recompiling. That was a genuinely forward-looking call for its era, and it deserves to be remembered as one.
Opal takes the same bet further with an embedded GraalJS runtime and a proxy surface covering player, render, rotation, world, and module state, plus a GraalJS/Yoga UI layer built on top of it. Tenacity got there first with the idea. Opal is doing more with it on tooling that did not exist yet when Tenacity shipped.
When Tenacity is the better call
Tenacity and Opal are not really competing for the same buyer right now. Tenacity served MC 1.8.9 PvP players through intent.store during a marketplace era that has since closed out, and it is not a live purchase option anymore. Still, there are honest reasons to reach for it.
Pros
- You are researching 1.8.9-era client design or the marketplace-as-platform model intent.store ran
- You want a reference point for the built-in HackerDetector idea, a client that flags the other team's cheaters instead of just hiding your own
- You already have a working Tenacity setup on a 1.8.9 server and it does what you need
Cons
- Not an active purchase, intent.store's storefront for it closed out in 2024
- Abandoned status means no patches against anything current
- Locked to MC 1.8.9, not the version most servers and players are on now
If you want a client that is actually maintained, runs on the Minecraft version people play now, and comes with a launcher and support behind it, that is Opal, mostly because it is the only one of the two still standing to answer the question.
FAQ
No. Its record marks it abandoned, and it was sold on intent.store from 2020 to 2024. That storefront wound down, so it is not an active purchase option the way Opal is.
No. HackerDetector flagged suspected cheaters on the other team, an unusual feature for a utility client to ship. Opal's module set is built around your own combat and movement, not opponent analysis.
Yes. Tenacity shipped its own JavaScript engine; Opal ships an embedded GraalJS runtime with a proxy API over player, render, rotation, and world state, so scripts can extend the client without a rebuild.
MC 26.2, as a Fabric mod.
$8.99, one payment, lifetime.
Lifetime license, instant delivery, no subscription
Disclaimer
Independent comparison. Tenacity 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.
