If you've poured a few hundred hours into NGU Idle and you're staring down the end of it with that familiar sinking feeling, you're in good company, because "what do I play after NGU" is one of the most-asked questions in the whole incremental scene, and there isn't an obvious answer, which is half the problem. NGU set a bar that not much clears, the slow unfolding of new mechanics, the numbers stacking on numbers, the sense that there's always another layer just out of reach, so anything that follows it has to earn its place.
I've been living in idle games for years, both playing them and building one, so this is my honest shortlist of what to try next, and yes, one of them is mine, and I'll be upfront about that when we get there rather than pretending I stumbled across it.
What actually makes a good NGU follow-up
Before the list, it's worth naming what you're actually chasing, because "idle game" covers everything from a five-minute tapper to a thousand-hour monster. The things NGU does that you're probably missing are the unfolding structure, where features unlock gradually instead of everything being dumped on you at once, the deep prestige loop that makes starting over feel like progress rather than punishment, and the dry sense of humour running underneath it all. Keep those three in mind, because they're what separates a game you play for a week from one you leave open for months.
The list
1. Kittens Game
The one people always name first, and rightly, a browser-and-mobile incremental with genuinely enormous depth that unfolds slowly across dozens of hours. No hand-holding, which is either the appeal or the problem depending on your patience.
2. Antimatter Dimensions
The gold standard for "numbers going up" done properly, with layer after layer of prestige mechanics that keep redefining what your numbers even mean. If NGU's late game hooked you, this scratches the same itch.
3. Melvor Idle
A RuneScape-inspired idle RPG with 25+ skills you train in the background, and probably the deepest single idle game on mobile right now. More of a commitment than NGU, but that's the point.
4. Exponential Idle
A maths-themed incremental that sounds intimidating and isn't, because almost everything automates, turning it into a true idle experience. Free, with a single small purchase you can also earn by watching the odd ad.
5. Leaf Blower Revolution
Deep, a bit silly, and full of the skill-tree sprawl that NGU fans tend to love, with actual gameplay elements rather than pure waiting.
6. Idling to Rule the Gods
An older favourite that's had years of updates, with the same "start simple, unfold into something enormous" shape NGU fans recognise instantly.
7. Idle Britain
Here's the one I built, so take the recommendation with that in mind, but I built it precisely because I wanted the NGU unfolding structure in something shorter, funnier and unmistakably British. It's a satirical idle game about the UK cost-of-living crisis, where you start by scraping pennies for a Tesco meal deal and it unfolds from there into bills, debt, dodgy side-hustles and eventually wealth so absurd it loops back around to taking the mick. There's a prestige loop (you Move Back In With Your Parents, strategically), meaningful choices about how you claw your way up, a proper deep ending you can eventually reach, and a running seam of dry British humour holding it together. It's free on Android, and if the idea of NGU-style layering with jokes about Martin Lewis and Uber Eats double shifts appeals, you can download Idle Britain here.
So what should you actually play?
If you want maximum depth and don't mind a steep climb, Melvor or Antimatter Dimensions. If you want the closest thing to NGU's unfolding feel, Kittens Game or Idling to Rule the Gods. And if you want something you can finish, that'll make you laugh, and that's built by someone who was clearly grieving the end of NGU while making it, give Idle Britain a go. It's free, so it costs you nothing but a bit of screen time and your dignity.