Gunbot Diplomacy

Roguelike· Bullet Heaven· Bullet Hell· Replay Value

Released May 2025

Splatter slimes, massacre mutants, and assemble your perfect Gunbot! Survive hordes of enemies in this top-down shooter roguelite by customizing your weapons on the unique upgrade grid, and pick from a wide variety of build-defining modules and wacky base bots for a new experience every run.

85% positive · 269 reviews

Not yet

Released, but still in active development

High confidence

Active Development

Not yet

Released, but still in active development

High confidence

Active Development

Where to buy

Steam Updated 13 Oct 2026 $4.99 Green Man Gaming Steam key Updated 13 Oct 2026 $4.99

Can't confirm — worth a look

We couldn't confirm these stores carry this game.

IndieGala Steam key Search

Prices in USD, as listed by each store.

Buying through an affiliate store helps support the site

Evaluation

Gunbot Diplomacy launched on May 13, 2025 as a full release (the developer explicitly noted "no Early Access, everything is ready and waiting for you" in a pre-launch announcement). Since then, the developer Sleepy Sentry has delivered a consistent stream of substantial free content updates: - **Patch 1.1 "Infinite Loop"** shipped on August 5, 2025, adding Endless Mode, a new biome, new weapons, modules, and more. - **Patch 1.2 "Gunbot Engineer"** shipped on December 4, 2025, introducing the Addons meta-progression system, new weapon evolves, a new weapon, and new modules. - **Patch 1.21 "Going Nuclear"** shipped on June 4, 2026, adding a new miniboss enemy, a new weapon, new modules, and various improvements. These three major updates span roughly 13 months post-launch at intervals of approximately 3–6 months, establishing a clear and sustained pattern of ongoing content development. The most recent major update arrived just 16 days before today's date (June 20, 2026), placing the game firmly within its active update window. The store description already reflects the Gunbot Engineer update's content. No specific future content has been formally announced, but the developer has not signaled that development is winding down, and the cadence strongly suggests further updates are likely.

Evidence

Patch 1.21 'Going Nuclear' launched, adding a new miniboss enemy (Atomic Slime), a new weapon (Fuel Rod Dispenser), two new modules, and balance/performance improvements.

news post · Jun 4, 2026 source content shipped

high

Patch 1.2 'Gunbot Engineer' launched, introducing the Addons meta-progression system, new weapon evolves, a new weapon (Pepper Spray), new modules, and balance changes.

news post · Dec 4, 2025 source content shipped

high

Media

Details

Developer

Sleepy Sentry

Publisher

GrabTheGames

Achievements

Platform

Windows

Controller

full support

Steam Deck

Verified

Players

Single-player

Bullet Heaven Bullet Hell Roguelike Replay Value Roguelite Hex Grid Arena Shooter Action Roguelike Action Gun Customization Robots Cartoony Controller Sci-fi Casual

About this game

Kick your builds into overdrive with Gunbot Engineer! Introducing Addons, meta progression rewards that allow you to build up power between runs and open up new ways to customize and amp up your builds!

Also featuring: Several new Weapon Evolves to discover and build around; Pepper Spray, a spicy new weapon; and new Modules and Upgrades to open new avenues for your builds!

Assemble the perfect arsenal of weapons, from nuclear footballs to fire extinguishers that spray electrified flames. Rewire your Gunbot - frame and (artificial) brain - whether it's for speed, durability, or straight up firepower. Welcome to the wasteland; now pick your flavor of carnage!

Features:

-Infinite replayability! No two bots are the same, so no two runs are the same!

-Mix and match from over 20 base weapons and customize them using 25+ types of augments and boosters to suit your build on a unique hexagonal upgrade grid!

-Choose from more than 80 build-defining modules - it's not like messing with Gunbot AI lead to the downfall of all human civilization or anything!

-Fast-paced gameplay: let your weapons do the talking and splatter your enemies across the desert, while you dodge out of harm's way!

-10 base Gunbots to choose from, from the gallant LanceBot to the Freezer, the best armed fridge the world has ever seen!

-Discover hidden combinations for special evolved weapons to kick your build into overdrive!

-Fun and varied enemies: oozified office workers still on their 9-to-5 grind, brawl boys who just want to fight everything that moves, skittering spine-slinging crab/cactus hybrids, and so much more!

-Special Hazard and Boss levels to test your build - and skills - in unique conditions!