Serpenta Battle Royale — Official Game Rules
Last updated: July 7, 2026
Summary: Serpenta Battle Royale is a real-time multiplayer competitive tournament. Up to 12 players compete in a shrinking arena. The last player standing wins. The top 3 finishers share the prize pool (50% / 30% / 20%). Player-versus-player outcomes are determined by player actions and fixed game rules, not by random number generation.
Serpenta contests are sponsored and administered by Eternel Games. Apple Inc. is not a sponsor of, and is not involved in, any contest, tournament, prize pool, winner selection, or prize distribution.
1. Overview
Serpenta Battle Royale is a fill-and-lock tournament where up to 12 eligible players compete simultaneously in a real-time arena. Each player controls a snake, navigating the arena to collect food, eliminate opponents, and survive a progressively shrinking zone.
All outcomes are determined by player actions: movement direction, boost timing, positioning relative to opponents, and strategic zone management. No random number generator (RNG) determines the outcome of any player-versus-player encounter.
Paid Battle Royale tournaments use verified human participants. Bot opponents are limited to free practice modes unless expressly disclosed for a non-cash review or demo flow.
2. Entry & Tiers
Games are organized into Tiers, each with a fixed entry fee (buy-in). For paid tournaments, the entry fee plus a separate 10% Platform Hosting Fee is charged from the player’s balance upon joining a tournament lobby.
| Tier | Entry Fee | Paid Entry |
|---|---|---|
| Free | $0.00 | No — practice only |
| Bronze | $0.50 | Yes, where offered |
| Silver | $1.00 | Yes |
| Gold | $5.00 | Yes |
| Platinum | $10.00 | Yes |
The entry fee and Platform Hosting Fee are non-refundable once the game countdown begins. If a game fails to start (e.g., insufficient players or server error), both are refunded in full.
3. Lobby & Matchmaking
3.1 Lobby Filling
Players join an open lobby for their selected tier. The lobby holds up to 12 players. Once the lobby fills or the server starts the tournament under the configured fill rules, the lobby locks — no additional players may join.
3.2 Countdown
After locking, a 5-second countdown begins. During the countdown, all players see the participant count and the total prize pool. The game starts simultaneously for all players when the countdown reaches zero.
3.3 Entry Fee Deduction
Your entry fee and Platform Hosting Fee are deducted from your balance when you join the lobby. If you disconnect before the game starts (during the filling phase), both amounts are refunded. Once the countdown begins, they are non-refundable.
4. Gameplay Mechanics
4.1 Movement
Each player controls a snake using continuous directional input (mouse, touch, or controller). The snake follows the player’s cursor or touch position with smooth angular interpolation.
- Snake speed increases with size (thickness) — larger snakes move faster but turn more slowly.
- Movement is physics-based and deterministic. No randomness is involved in speed or turning calculations.
4.2 Boost
Players can activate a boost to temporarily increase speed to approximately 1.95x base speed. Boosting consumes the snake’s segments (size), creating a strategic trade-off: speed vs. survivability.
- Boosting leaves behind food particles that other players can collect.
- Strategic boost usage is a core skill — using it at the right moment can secure kills or escape danger.
4.3 Food Collection
The arena contains food particles that snakes collect by moving their head near them:
- Ambient food — Spawns throughout the arena. Collecting it increases your snake’s size.
- Death food — When a snake is eliminated, its body converts into food carrying the eliminated player’s value. Collecting death food increases both your size and your carrying value (score).
Food collection requires positioning skill — you must navigate your snake’s head within collection range of the food.
4.4 Collisions & Combat
Combat in Serpenta is entirely deterministic. There are two types of collisions:
Head-to-Body Collision:
If your snake’s head touches another snake’s body, you are eliminated. This is the primary combat mechanic and requires spatial awareness, positioning, and evasion skills.
Head-to-Head Collision:
When two snake heads collide, the outcome is determined by a fixed, deterministic hierarchy:
- If only one snake is boosting, the boosting snake survives.
- If speeds are equal, the smaller snake is eliminated (or both, if equal size).
- Otherwise, the slower snake is eliminated.
No random number generator is used in any collision resolution.
4.5 Score (Carrying Value)
Your score represents your total carrying value:
Score = Entry Fee + Value from Collected Death Food
In Battle Royale, final placement determines the prize distribution. Carrying value remains important because eliminating opponents and collecting death food can increase your size and affect combat positioning.
5. Shrinking Zone
The arena features a shrinking safe zone that progressively forces players into a smaller area, preventing stalling and ensuring the game reaches a conclusion.
5.1 Zone Phases
The zone shrinks through 7 phases:
| Phase | Safe Zone Size | Duration |
|---|---|---|
| 1 | 100% of initial radius | 30 seconds |
| 2 | 75% of initial radius | 40 seconds |
| 3 | 50% of initial radius | 40 seconds |
| 4 | 30% of initial radius | 40 seconds |
| 5 | 15% of initial radius | 40 seconds |
| 6 | 5% of initial radius | 40 seconds |
| 7 (Final) | 2.5% of initial radius | Until game ends |
5.2 Zone Damage
Players outside the safe zone take progressive damage:
- Damage increases with each phase — early phases deal mild damage, later phases deal severe damage.
- Outside the zone, your snake loses segments progressively. In the final phases, zone damage is near-instant elimination.
- Zone damage applies equally to all players — there is no random or asymmetric zone damage.
5.3 Strategic Importance
Zone management is a critical skill. Players must balance:
- Staying inside the zone for safety vs. venturing outside to collect food or engage opponents
- Positioning near the zone edge to control space vs. centering for maximum future options
- Timing rotations to new zone positions as the safe area shifts
6. Elimination & Victory
A player is eliminated when:
- Their snake’s head collides with another snake’s body (head-to-body collision)
- They lose a head-on collision (head-to-head, resolved deterministically)
- Zone damage reduces their snake to the minimum size and they remain outside the zone
When eliminated, the snake’s body converts into death food that other players can collect.
The game ends when 1 or fewer players remain alive. Players are ranked by the order in which they were eliminated (last eliminated = highest placement). The last surviving player wins 1st place.
If all remaining players are eliminated simultaneously, placement is determined by the order of elimination within that game tick.
7. Prize Distribution
The prize pool is the sum of player entry fees. The separate Platform Hosting Fee is charged before match commencement and is not deducted from the prize pool after it is formed. One hundred percent (100%) of the prize pool is distributed to the top 3 finishers:
| Placement | Share of Prize Pool |
|---|---|
| 1st Place | 50% |
| 2nd Place | 30% |
| 3rd Place | 20% |
Example Prize Calculations (12 players):
| Tier | Entry Pool | Platform Fee | Prize Pool | 1st | 2nd | 3rd |
|---|---|---|---|---|---|---|
| Bronze | $6.00 | $0.60 | $6.00 | $3.00 | $1.80 | $1.20 |
| Silver | $12.00 | $1.20 | $12.00 | $6.00 | $3.60 | $2.40 |
| Gold | $60.00 | $6.00 | $60.00 | $30.00 | $18.00 | $12.00 |
| Platinum | $120.00 | $12.00 | $120.00 | $60.00 | $36.00 | $24.00 |
Note: Prize pool scales with player count. The examples above assume 12 players. Games with fewer players will have proportionally smaller prize pools.
Prizes are credited to winners’ account balances upon game completion. Players finishing outside the top 3 do not receive a prize and forfeit their entry fee.
8. Platform Hosting Fee
The platform charges a 10% Platform Hosting Fee on each paid entry. This fee is added to the entry fee and charged before the match begins. For example, a $1.00 entry has a $0.10 Platform Hosting Fee, so the total amount debited is $1.10.
- The Platform Hosting Fee is the same across paid tiers where real-money play is offered.
- The Free tier has no Platform Hosting Fee and no paid-entry prize awards.
- The Platform Hosting Fee is disclosed transparently in the lobby before the game begins.
- No additional fee is deducted from winnings or from the prize pool after it is formed.
9. Fair Play & Prohibited Conduct
The following conduct is strictly prohibited:
- Collusion or teaming — Coordinating with other players to gain unfair advantage
- Feeding — Intentionally losing or transferring value to another player
- Automation — Use of bots, scripts, macros, or any automated play
- Bug exploitation — Exploiting glitches or unintended behavior
- Multi-accounting — Using more than one account
- Location spoofing — Using VPNs or other tools to circumvent jurisdiction restrictions
Eternel uses automated behavioral detection systems including proximity analysis, movement pattern correlation, and selective non-aggression tracking to identify prohibited behavior.
Violations may result in warnings, temporary suspension, permanent ban, and/or forfeiture of account balance. See our Terms of Service for full details.
10. Practice Mode
The Free tier is available for practice at no cost. In practice mode:
- No paid entry is involved — no entry fee and no prize awards
- Players compete against bot opponents to learn game mechanics
- All gameplay mechanics (movement, boost, collisions, zone) function identically to paid tournaments
- Practice mode is available in all jurisdictions worldwide, including Restricted Jurisdictions where paid tournaments are not available
We encourage all players to use practice mode to learn the game before entering paid tournaments.
11. Geographic Eligibility
Serpenta Battle Royale paid tournaments and wallet features are currently available only in eligible United States jurisdictions where skill-based real-money gaming is permitted by law and enabled by the Platform.
- Free practice mode is available to eligible users worldwide with no geographic restrictions.
- Paid tournaments require that the player is physically located in an eligible jurisdiction at the time of entry. The Platform verifies location using real-time geo-fencing (GPS, IP geolocation, and device location services).
- Players in Restricted Jurisdictions (see Terms of Service, Article 8 for the current list) will be unable to add funds, withdraw, or enter paid tournaments but may still use free practice mode and manage their account.
12. Game Parameter Changes
The Operator may adjust game parameters — including but not limited to player count, zone behavior, collision mechanics, prize distribution, and Platform Hosting Fee rates — at any time. Material changes to game rules will be communicated with reasonable notice and this page will be updated accordingly.
The “Last Updated” date at the top of this page always reflects the current version of the rules.
Eternel Games LLC · 30 N Gould St, Ste 61798, Sheridan, WY 82801, USA — Intellectual Property & Legal
Eternel Games Ltd · Company No. 17139657 · Registered in England and Wales
128 City Road, London, EC1V 2NX, United Kingdom
Contact: [email protected]