Estimated reading time: 8 min | Updated: July 5, 2026
s&box has finally arrived. After more than a decade of development, Facepunch Studios' spiritual successor to Garry's Mod launched on Steam on April 28, 2026. But what is it actually like to play?
I've spent hours exploring the platform — jumping between game modes, testing performance, and trying to understand what s&box is trying to be. The short answer? It's complicated.
In this first‑hand gameplay report, I'll walk you through the real s&box experience — the good, the bad, and the baffling. No marketing fluff, just honest impressions from someone who's been there.
The Core Experience – What Is s&box, Really?
Pitched as a "game creation platform built on the Source 2 engine," s&box is best described as Garry's Mod spun into Roblox[reference:0]. It's not a single game — it's a platform where you play games made by the community, create your own, and share them with others[reference:1].
The official description sums it up neatly:
"Play, create, and share games, explore community creations, and experience endless sandbox fun with powerful modern tools."[reference:2]
When you launch s&box, you're greeted by a grid‑based launcher that looks more like a content hub — think Roblox or the Fortnite creative menu — than a traditional game[reference:3]. From here, you browse games, join servers, or open the editor.
The platform supports a wide range of genres — FPS, role‑playing, puzzle, sandbox, racing, and more[reference:4]. But the quality varies wildly depending on who made it[reference:5].
First Impressions – The Good and the Jarring
The first thing that strikes you is the visual leap. Source 2 is a massive upgrade over the original Source engine. Lighting is sharper than Garry's Mod ever managed, physics interactions feel less rubbery, and the cartoon character models slot into scenes without the prop‑physics jankiness of the old engine[reference:6].
But that polish comes with a cost. Performance is a major concern. Even on capable hardware, you'll notice frame drops. One reviewer noted that "looking at the house would drop it down into the 40s" on low settings, and bringing up menus caused "pretty bad" stuttering[reference:7].
Warning: The game has a 32GB RAM minimum recommendation[reference:8]. If you're on an older machine, you may struggle to run it smoothly.
The default world is quite barren[reference:9]. Unlike Garry's Mod, which launched with a treasure trove of Valve assets, s&box has its own original set of assets — including characters, weapons, and props[reference:10]. This means no iconic Half‑Life or Portal models out of the box.
Game Modes – What Can You Actually Play?
The library of community‑created games is the heart of s&box. Here are some of the most notable experiences:
🎯 DEATH MATCH
Attempts to replicate classic shooter mechanics like shift‑walking and pistol starts. However, it lacks the specific feedback and hit detection associated with legacy Source engine titles[reference:11].
💥 Strike Force
Operates as a Call of Duty‑style clone, featuring aim‑down‑sights mechanics and profile cards. It aligns more with modern arcade shooters than the sandbox‑oriented gameplay of the past[reference:12].
🕵️ TTT (Trouble in Terrorist Town)
The classic social deduction game mode is here, built by the community. One player described playing TTT in Source 2 as "a pretty cool experience (when it works)"[reference:13]. But it's not always smooth.
🎮 DXRP – The Most Popular Game
Without a doubt, DXRP is the most played game in s&box. This role‑play experience has consistently been the most popular for several months[reference:14].
🌱 Mow the Lawn
A quirky sandbox mode that I tried on Steam Deck — and it was almost unplayable. Sub‑30 FPS, constant stutters, and graphical artifacts made it a "nightmare to just move around"[reference:15].
The platform also hosts skateboarding games with mechanics reminiscent of Tony Hawk, PvP golfing with power‑ups, and various other genres[reference:16]. The versatility is impressive, but quality is hit‑or‑miss.
Performance & Optimisation – The Elephant in the Room
If there's one consistent complaint about s&box, it's performance.
On the Steam Deck, the experience is rough. Even on low settings, the game fluctuates between 60 FPS and the 40s[reference:17]. Menus cause stuttering, and more complicated maps are "almost impossible" to play[reference:18].
One reviewer was brutal:
"Absolutely garbage, horrible optimisation (their trailer even features the game dropping below 30fps.) that gate keeps the majority of people ever touching this 'game.'"[reference:19]
The minimum RAM recommendation is 32GB[reference:20] — a steep requirement that locks out many potential players.
On top of that, s&box doesn't have controller support yet[reference:21]. The default Steam Input configuration isn't usable, so you'll have to manually map keyboard and mouse controls[reference:22].
Verdict: If you're on a high‑end gaming PC, you'll be fine. If you're on a Steam Deck, older hardware, or a laptop, proceed with caution.
The AI Slop Problem – A Flood of Low‑Effort Content
This is the biggest controversy surrounding s&box. The platform is being flooded with low‑effort AI‑generated content[reference:23][reference:24].
At launch, only 49% of reviews were positive, giving the game a "Mixed" rating[reference:25]. The vast majority of negative reviews referenced AI‑generated slop in some respect[reference:26].
One player summed it up:
"For a more creative space like this to truly flourish, using a shortcut like AI to generate assets for over 75% or more of the experience shouldn't even be worth a person's time or money."[reference:27]
Garry Newman, Facepunch's founder, has acknowledged the problem:
"Low quality, obvious AI‑created slop is going to be a growing problem in every creative outlet. We don't encourage using AI to be creative. We don't encourage using AI to create games for you. We'll be taking action to promote human creativity and push obviously AI‑created slop off the main page."[reference:28]
In a later update, Newman broke down the review complaints:
- 35% of reviews compared the game to Garry's Mod and wished it were more like the original[reference:29].
- 27% were unhappy with the lack of Steam Workshop integration[reference:30].
- 24% complained about AI slop[reference:31].
Newman's response to the AI issue was blunt:
"It's not our intention to encourage people making shit, no effort games. But it's a [User Generated Content] platform, there is always going to be dog shit."[reference:32]
The team's main aim is to ensure that good games float to the top and bad games float to the bottom[reference:33]. Whether that works in practice remains to be seen.
s&box vs Garry's Mod – The Unavoidable Comparison
You can't talk about s&box without comparing it to Garry's Mod. And that's exactly what's hurting it.
Newman himself acknowledged this:
"Around 35 per cent of the reviews compare the game to Garry's Mod. They point out the differences, they wish it were more like Garry's Mod. I understand this; they wanted an integration of Garry's Mod onto the Source Engine. [...] I don't think we can win in that argument, it's going to be an expectation and preference thing."[reference:34]
The key differences are stark:
- Engine: GMod used the unmodified Source engine, allowing assets from Half‑Life 2, Portal, and TF2 to be used freely[reference:35]. s&box uses a heavily modified Source 2 with its own original assets[reference:36].
- Workshop: GMod has deep Steam Workshop integration[reference:37]. s&box doesn't — at least not yet[reference:38].
- Scripting: GMod used Lua. s&box uses C# — a more professional, structured language[reference:39].
- Game modes vs. individual games: GMod has game modes built on a shared sandbox. s&box has standalone games, each a separate experience[reference:40].
One reviewer put it bluntly:
"GMod's successor? No, on the contrary."[reference:41]
The Verdict – Is s&box Worth Playing?
After spending time with s&box, here's my honest take.
✅ The Good
- Source 2 looks and feels great — when it runs well.
- Huge creative potential — C# scripting and modern tools are a big upgrade for developers.
- Diverse game library — from shooters to skateboarding to golf, there's a lot to try.
- Play Fund and Steam publishing — creators have real incentives to build quality content.
❌ The Bad
- Performance is rough — 32GB RAM minimum is a high barrier.
- AI slop is everywhere — finding quality games takes effort.
- No Steam Workshop — a huge missing feature for GMod fans.
- It's not Garry's Mod — and many players can't get past that.
- Mixed reviews — only 45‑49% positive at launch[reference:42][reference:43].
The bottom line: s&box is a cool experience with a lot of potential[reference:44]. But it's not ready for prime time — at least not for everyone. If you have a powerful PC, a tolerance for jank, and an interest in game creation, it's worth a look. If you're expecting Garry's Mod 2, you'll be disappointed.
Should you buy it? If you're a creator or developer, absolutely. If you're a player looking for a polished experience, wait a few months — let the community build more content and let Facepunch fix the performance issues.
This first‑hand gameplay report was last updated on July 5, 2026. All impressions are based on the current s&box release version.
