Viper.io vs The 20
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Viper.io
Engage in fast-paced online multiplayer battles as a growing snake. Avoid other players, collect food and boosters to gain abilities, and aim to become the largest snake. Compete with friends and players worldwide on leaderboards.
- Real-time online multiplayer
- Play with friends
- Multiple game modes
- Unlockable skins
- Leaderboards
- In-game chat
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Play online with real players and friends in fast-paced multiplayer battles. Become the biggest snake and rise to the top. Avoid collisions with other snakes and force your opponents to crash into you. Collect food and boosters to gain special abilities and grow even larger. Game features: • Real-time online multiplayer • Play together with your friends • 3 unique game modes • Dozens of free skins • Leaderboards for each game mode • Challenging quests and objectives • Free daily and hourly coins • Built-in chat to communicate during matches Discover even more exciting features — jump into Viper.io and prove you’re the biggest snake in the arena! Terms and Conditions: https://vipergameio.blogspot.com/2023/02/viperio-terms-conditions.html Privacy Policy: https://vipergameio.blogspot.com/2023/02/viperio-privacy-policy.html
The 20
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The 20-Egg Problem is a simple, fast, and challenging arcade-style game. It started from a mathematical curiosity: on a grid of 100 cells, there are roughly 535 quintillion different ways to place 20 eggs. Every round the eggs move to new spots, and you dive into that huge universe of combinations to find them all in the least time possible. Tap the grid to mark where the snakes should look. They crawl there on their own: if an egg is there, it appears; if not, the cell turns into a hole and the snake reappears far away. Every guess counts as one try, and a snake that bites its own tail ends the round. Key features: • Find the 20 eggs hidden on the 10x10 grid • Play with 1 or 2 snakes — up to 5 with the optional unlock • Adjust the snakes' speed • Track time, tries, and eggs found • See your best time, medals (gold, silver, bronze), and perfect games • Minimalist black-and-white look with color accents, inspired by classic arcades • No ads, no account, no data collection Easy to understand, hard to master. A single optional purchase unlocks 3 to 5 snakes for anyone who wants a bigger challenge.
Screenshots
Verdict
The clearest difference is ads: The 20 at none against Viper.io's shown. Viper.io's advantage is iOS requirement (13.0 vs 17.0). On price, update cadence, 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. Viper.io sells 1 in-app purchase, starting at $5.99 per month and The 20 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.
| Parameter | Viper.io | The 20 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (951 ratings) — better | — |
| Positive reviews | 75.9% of reviews | — |
| Number of ratings | 951 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 201 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Mikhail Prysiazhniy | Roberto Baitelli |
Bugs and requests
Viper.io
Reported bugs
2 issues- Game freezing or shutting down at high scores
- Issues with account/progress syncing across devices
Requested features
3 requests- Improved multiplayer experience
- More customization options for snakes
- Expanded game modes or levels
The 20
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Viper.io
- VIP Account3 Days trial$5.991 Month
The 20
- Extra Snakes (3 to 5)$0.99








