Klaus Lee - Thunderballs
Dive deep through the neon-hued brash and bawdy '80s inspired reimagined classic 2D action-platformer with your favorite BADASS Kraut, Klaus Lee! Dust off your jetpack, grab your dynamite and prepare your laser eyes and dive deep into Klaus' first challenging adventure!
- Price:$3.24
- Release Date:6/26/2025
- Franchise:Assemble Entertainment
- Developer:NUKKLEAR
- Publisher:Assemble Entertainment
- Last Updated:3/19/2026
- Steam App Id:1776700
Klaus Lee - Thunderballs
- Windows
- Mac
- Linux
Steam Charts, Stats, and Live Player Count
At the moment, Klaus Lee - Thunderballs has 1 concurrent player online and in-game. This is 67% lower than its previous all-time peak of 3 players achieved on 7/1/2025.
Klaus Lee - Thunderballs Review
Klaus Lee - Thunderballs has achieved a Steambase Player Score of 100 / 100. This score is calculated from 11 total reviews on the Steam store — giving it a Positive rating. These are split between 11 positive reviews, 0 negative reviews, and will be updated in real-time as more players leave their feedback.
Track historical reviews and overall rating trends for Klaus Lee - Thunderballs using the chart below.
Klaus Lee - Thunderballs Price
Klaus Lee - Thunderballs costs $3.24 in the Steam store as of 3/19/2026 which is a 75% discount off its base price. It can be purchased as a standalone game or through a bundle like Klaus Lee + Super Catboy, Assemble Complete, or Klaus Lee + Larry which offers a discount off the game's base price.
Explore the price history chart below to track historical price changes and other pricing stats for Klaus Lee - Thunderballs.
About Klaus Lee - Thunderballs
Klaus Lee - Thunderballs is an Action, Adventure, and Casual game developed by NUKKLEAR. On 6/26/2025, it was released on the Steam Store by Assemble Entertainment.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
It also supports 8 languanges in-game including English, German, Japanese, Korean, and Chinese (Simplified). Each language comes with varying levels of support for the in-game interface, audio, and fully translated subtitles.
According to Steam’s category system, Klaus Lee - Thunderballs supports the following features:
- Single-player
- Full controller support
- Partial Controller Support
- Includes level editor
- Stats
- Family Sharing
- Steam Achievements
From the Steam community, Klaus Lee - Thunderballs has been tagged with the following user tags:
- Difficult
- Platformer
- Puzzle
- Comedy
- Retro
- Old School
- 2D Platformer
- 1980s
- Level Editor
- Funny
- Arcade
- Puzzle Platformer
- Indie
- Casual
- Action
- Cartoony
- Adventure
- Singleplayer
- 2D
Media & Sceenshots
Watch the featured video for Klaus Lee - Thunderballs and see the latest screenshots from the Steam Store.
Related Bundles
Klaus Lee - Thunderballs is included in 3 bundles in the Steam Store.
| Image | Name | Apps | Packages | Price | Actions |
|---|---|---|---|---|---|
 | Klaus Lee + Super Catboy | 2 | 2 | $4.71 | View |
 | Assemble Complete | 71 | 71 | $144.26 | View |
 | Klaus Lee + Larry | 3 | 3 | $5.83 | View |
Related Packages
Klaus Lee - Thunderballs is referenced by 1 package in the Steam Store.
| Name | Price | Actions |
|---|---|---|
| Klaus Lee - Thunderballs | $9.74 | View |
Supported Languages
Klaus Lee - Thunderballs is available in 8 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes | Yes |
| German | Yes | No | Yes |
| Japanese | Yes | No | Yes |
| Korean | Yes | No | Yes |
| Chinese (Simplified) | Yes | No | Yes |
| Chinese (Traditional) | Yes | No | Yes |
| Portuguese-Brazil | Yes | No | Yes |
| Russian | Yes | No | Yes |
Frequently Asked Questions
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Data is enriched, cleansed, verified, and updated in real-time to ensure we surface the most up-to-date information. Learn more about the Steambase approach to data collection.
Klaus Lee - Thunderballs data has been sourced from:
- Valve Corporation. (2026, March 19). Klaus Lee - Thunderballs on Steam. Steam Store. https://store.steampowered.com/app/1776700
- Valve Corporation. (2026, March 19). Klaus Lee - Thunderballs. Steam Community Hub. https://steamcommunity.com/app/1776700
- NUKKLEAR. (2023, July 7). Klaus Lee - Thunderballs. Klaus Lee - Thunderballs. https://nukklear.com/klaus-lee