Drain Brain vs PromptWorldGame
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Drain Brain
A retro-styled puzzle game where players connect pipes on a grid to create a path for flowing liquid. Score points by filling pipes and race against the clock to fix dead ends before the flow stops. Features include various pipe types, a smart queue, and bombs to correct mistakes.
- Pipe connection puzzles
- Retro LCD handheld style
- Progressive difficulty
- Smart queue system
- Game Center leaderboards
- Original soundtrack
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Connect pipes before the flow catches up in Drain Brain, a retro-styled puzzle game inspired by classic LCD handhelds! Place pipes on a grid to create a path from start to goal. Once the countdown ends, liquid begins flowing through your creation. Every pipe it fills scores points, but if the flow hits a dead end, you've got seconds to fix it or it's game over! Features: • 7 pipe types including cross pipes that can score twice! • Smart queue system with 5 upcoming pieces! • 3 bombs per level to fix mistakes! • Progressive difficulty that speeds up as you advance! • Game Center leaderboards and achievements! • Original soundtrack by Nobonoko! • Themes, and more! Easy to learn. Hard to master. Each level pushes you faster. How far can you go?!?!?!
PromptWorldGame
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A new level every day. Can you beat it? Prompt World Game is a 3D stealth shooter where a fresh, hand-built level drops every day — a castle town, a desert canyon, a city of canals, a mountain citadel. Each one has its own story, layout and soundtrack. ■ TODAY'S LEVEL - Open the app and today's level is right there. Tap PLAY and you're in - Every daily level is numbered, so you can find the exact one you saw in our videos - Nobody has cleared it yet? Be the first player in the world to beat it ■ THOUSANDS OF WAYS TO PLAY - Browse every level: newest, top rated, most played, hardest - Search by name - Unverified levels nobody has cleared yet — claim the world-first clear ■ RACE THE WORLD - Every level has its own time ranking - Every record is verified on the server by replaying your actual moves. No fake scores ■ SIMPLE CONTROLS Move, aim and fire. Jump over walls, zoom in with the scope to hit snipers on the rooftops, and take over a drone when you defeat its operator. ■ MAKE YOUR OWN LEVELS Describe a level to an AI assistant and it builds it for you — enemies, terrain and music. Your level appears in the game for everyone to play. ■ PLAY YOUR WAY - Portrait or landscape - iPhone and iPad - Free to play
Screenshots
Verdict
The clearest difference is ads: Drain Brain at none against PromptWorldGame's shown. Drain Brain also leads on update cadence (daily vs every 3 days). PromptWorldGame's advantage is iOS requirement (15.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Drain Brain ships an update daily, PromptWorldGame every 3 days. The most recent releases landed on October 25, 2026 and October 15, 2026 respectively.
| Parameter | Drain Brain | PromptWorldGame |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Daily — better | Every 3 days |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 125 MB |
| Age rating | 4+ | 12+ |
| Developer | Symbolic Software | Takumi Fukushima |
In-app purchases
Drain Brain
No in-app purchases
PromptWorldGame
No in-app purchases









