Xenonauts 2 Achievement Guide: How to Manually Change Difficulty and Unlock Achievements in 2026
If you’ve spent even a few hours with Xenonauts 2, you already know one thing: this game does not mess around. It’s brutal, methodical, and sometimes downright unfair in the most old-school way possible. And honestly? That’s part of the charm.
But here’s the thing nobody tells you upfront — the line between challenge and frustration gets very thin, especially when you’re chasing achievements. I’ve had campaigns ruined by bad RNG streaks, bugs, or just one disastrous mission that snowballed into global panic.
So yeah… I started experimenting.
This isn’t some sterile guide. This is more like what you’d read on Reddit after someone sank 100+ hours into the game and decided to fight back a little. If you want to customize difficulty, avoid achievement lockouts, and still feel like you earned your wins, here’s what actually works in 2026.
Why Xenonauts 2 Achievements Feel So Punishing
Let’s get this out of the way: the achievement system is strict. The game actively checks whether you’ve modified files or used certain mods, and if it detects anything suspicious, your save gets flagged as Modified, which means no achievements.
That includes editing json or xml files mid-campaign, using gameplay-altering mods, or messing with soldier stats too aggressively. But the interesting part is that the system isn’t perfect, and that’s where things become flexible.
The Three Real Ways People Approach Achievements
From what I’ve seen and tested myself, players usually fall into three categories: legit runs with no changes, manual tweaks through file edits, and full bypass methods using plugins. The middle ground is where the game feels best — not too punishing, not too artificial.
| Approach | Description | My Take |
|---|---|---|
| Legit Run | No edits, no mods, pure gameplay | Respectable, but painful |
| Manual Tweaks | Editing files before campaign start | Best balance |
| Bypass Method | Using tools or plugins to ignore flags | Risky but powerful |
Tweaking Difficulty the Smart Way
Instead of relying on in-game sliders, you can go deeper by editing configuration files. This gives you control over pacing rather than just raw difficulty.
The main directory you’ll need is inside your Steam folder under the Xenonauts 2 Assets strategy templates. The key file is gameconfig.json.
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What I Actually Changed
- Alien progression speed: Lowered AlienTickerSpeed to slow down escalation
- Panic growth: Reduced PanicIncreaseRate for more recovery room
- Starting funds: Slightly increased starting credits for flexibility
Important: all changes should be made before starting a new campaign. Mid-game edits are much more likely to flag your save.
The 2026 Reality: Achievement Enablers
By 2026, the developers tightened validation systems, so even harmless tweaks can trigger restrictions. That’s why many players use BepInEx with achievement enabler plugins.
These tools override internal checks and allow achievements to remain active even when the game detects modifications. It’s widely used for quality-of-life mods and minor tweaks.
It works well in most cases, but pushing things too far can still cause inconsistencies.
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The Hardest Achievements and How to Handle Them
Commander Victory
This is easily the toughest challenge. The biggest shift for me was focusing on air superiority. Slightly improving aircraft weapons made a huge difference without breaking balance.
Once I stopped losing aircraft, panic levels became manageable and the campaign stabilized.
Full Squad of Colonels
The grind for experience is long, so I reduced XP thresholds slightly in ranks.json. Not enough to break progression, just enough to make it feel fair.
The result felt natural and didn’t trigger any issues.
Destroying a Battleship
By default, battleships appear late. Adjusting spawn values allowed earlier encounters when I was actually prepared. This made the achievement feel achievable instead of purely time-gated.
The Save-Scum Myth
Reloading saves doesn’t change outcomes because the game uses a seeded RNG system. If you repeat the same action, you get the same result.
To change outcomes, you need to alter your sequence of actions first, such as moving another unit or taking a different shot.
The Most Underrated Tool: MARS
The MARS unit is incredibly useful. It can absorb damage, trigger enemy reactions, and doesn’t count as a typical casualty in many cases.
For no-loss achievements, it becomes almost essential.
My Personal Safe Editing Rules
- Always backup files
- Edit only before starting a campaign
- Avoid extreme values
- Test small changes first
- Limit the number of mods
Quick Reference Table
| Change Type | Risk Level | Notes |
|---|---|---|
| Economy tweaks | Low | Safe if done early |
| Alien pacing | Low | Best balance tool |
| XP adjustments | Medium | Keep reasonable |
| Weapon buffs | Medium | Subtle changes only |
| Soldier edits | High | Often flagged |
| Save edits | Very High | Risky |
Final Thoughts
Is this cheating? That depends on your perspective. For me, it’s about improving the experience, not removing the challenge.
Xenonauts 2 shines when decisions matter, not when you’re stuck grinding or restarting due to one unlucky moment. Small tweaks can actually bring the game closer to its ideal form.
