The short answer
Kaiserreich is better if you want a grounded, coherent alternate history. Kaiserredux is better if you want as many paths as possible, including unusual and humorous ones. They are separate mods; you play one or the other.
Where Kaiserredux came from
According to its Steam Workshop page, KaiserreduX began in late 2019 as a collection of submods for Kaiserreich. It became a unified submod, then a fork, and grew into its own project through new content and wider changes to the lore and setting. Its page credits the Kaiserreich team for the original base.
The team behind Kaiserredux describes its goal as expanding Kaiserreich's content with an emphasis on fun and interesting scenarios over strict realism.
Side-by-side comparison
| Kaiserreich | Kaiserredux | |
|---|---|---|
| Relationship | Original mod | Fork of Kaiserreich |
| Tone | Grounded, plausible | Broader, often wild |
| Number of paths | Fewer, more curated | Many more per nation |
| Lore | Strict, team-controlled canon | Changes and restores retconned ideas |
| Workshop size | Not listed by us | About 5.1 GB |
| Workshop ID | 1521695605 | 2076426030 |
| Run together? | No | No |
Pick Kaiserreich if…
- You are new to the setting. The story is easier to follow when every path is consistent.
- You want a believable timeline. Content goes through the team's own lore standards.
- You care about polish. Community players often praise certain Kaiserreich reworks, for example areas such as China and the Balkans, as especially strong.
- You play long campaigns. Some players report better late-game performance with fewer active scripts.
Pick Kaiserredux if…
- You have finished Kaiserreich's main paths and want new ones.
- You enjoy absurd or meme scenarios alongside serious ones.
- You want content faster. Kaiserredux often adds paths more quickly than the original's slower, review-heavy process.
Performance and stability
Kaiserredux is large. Its Workshop item is listed at about 5.1 GB, and community discussions frequently mention slower late games. Kaiserreich is lighter in comparison, though long campaigns in any big mod demand a good CPU.
Can you install both?
You can have both downloaded, but enable only one per playset in the Paradox launcher. Submods are built for one or the other; a Kaiserreich submod usually will not work with Kaiserredux, and vice versa.
Verdict
Start with Kaiserreich to learn the world as its creators intended. Move to Kaiserredux when you want more variety and do not mind wilder outcomes. To install the original, see how to download Kaiserreich.
Get Kaiserreich 1.7
Free mod for Hearts of Iron IV, straight from the official GitHub repository.
