The Rainbow Grid event is a brand-new limited-time event in Survivor.io that runs from December 20 to December 25. It introduces a grid-based reward system with valuable prizes such as Core Choice Chests, Legend Collectibles, Tech Parts, and Gems. Since this is a first-time event, the mechanics may feel confusing at first, so this guide breaks everything down clearly and efficiently.
Survivor.io Rainbow Grid Event – Core Choice Chests, Collectibles
Rainbow Grid revolves around completing missions to earn Bells, which are then used to draw items from a grid. Each draw reveals items that contribute toward progress bars, special effects, and end-of-match rewards. Smart bell usage and understanding special items are the key to maximizing value.
How to Earn Bells
Bells are the main currency of the Rainbow Grid event. You can obtain them through multiple methods:
- Completing event missions (up to 280 Bells total)
- Logging in daily during the event
- Completing High-Quality Chest opening tasks (up to 68 Bells from one task alone)
- Starting with 3 free Bells
- Purchasing Bells for 300 Gems each
- Possible ad-based or shop purchases during the event sale
If you complete all available missions, you will earn enough Bells to make several meaningful grid pulls without spending gems.
Rainbow Grid Gameplay Explained
Each Bell allows you to draw from the Rainbow Grid. When you draw an item:
- You also collect any identical items connected horizontally or vertically
- Diagonal items do not count
- Items contribute to their respective progress bars
Once a progress bar for an item is filled, you can immediately claim its reward. These rewards can be earned repeatedly, making efficient grid clearing very important.
Normal Items and Progress Rewards
Normal items are the backbone of the event and include:
- Christmas Stockings
- Mittens
- Scarves
- Candy Canes
- Snowflakes
Each item type has its own progress bar. Filling these bars grants repeatable rewards, which are later converted into Christmas Trees at the end of a match.
Special Items and Their Effects
Special items dramatically change how the grid behaves:
- Bomb
Collects all items in up to eight surrounding tiles, making it extremely valuable for clearing clusters. - Star
Collecting exactly three Stars in a single match triggers Fever Mode after the match ends.
Fever Mode Explained
Fever Mode is one of the most important mechanics in Rainbow Grid:
- Activates only if exactly three Stars are collected in one match
- Grants free draws, increasing your total rewards significantly
- If fewer than three Stars are collected, or more than three are collected, Fever Mode will not activate
Any excess or unused Stars are converted into Christmas Trees, so timing and restraint matter.
End-of-Match Conversion Rules
At the end of each match:
- Any unfinished item progress is converted into Christmas Trees
- Progress does not carry over to the next match
- This means it is often better to complete progress bars fully rather than spreading progress across many items
Christmas Trees and Exchange Shop
Christmas Trees act as a secondary event currency and can be exchanged for powerful rewards, including:
- Legend Collectible (compatible with Quietus armor)
- Core Choice Chest
- Epic Tech Parts
- Collectibles
- Party Invitations
- Party Guest Cards
- SP Omni Shards
- S-Grade Crates
- Energy Essence
- Keys and Cookies
- Event-exclusive outfits for Joey and Master Yang
Some items increase in cost after the first purchase, so prioritizing high-value items early is strongly recommended.
Party Guest Cards and Lucky Chest Party
You can earn up to 5 Party Guest Cards by:
- Logging in daily during the event
- Exchanging Christmas Trees
Party Guest Cards allow you to join the Lucky Chest Party, where you can obtain:
- Cores
- Tech Parts
- Gems
- Other high-tier rewards
This system is luck-based and should be treated carefully.
Party Invitations and Gem Strategy
Party Invitations are often one of the best-value items in events:
- Inviting players can grant up to 2,000 Gems per participant
- Joining other parties costs Gems and is highly luck-dependent
- Results are unpredictable, and poor luck can result in wasted Gems
This system is essentially gambling. It can be fun, but it is not recommended for players trying to maximize guaranteed value.
Milestone Rewards
As you progress through the event, you can unlock milestone rewards such as:
- Keys
- Collectibles
- Tech Parts
- S-Grade Crates
- Core Choice Chest
These milestones reward consistent participation and mission completion.
Additional Event Updates During Rainbow Grid
During the event period, Survivor.io also introduces:
- Twinborn Tech High Energy Gravity Diffuser (Brick Mode feature)
- New Collection Sets
- Survivor Showdown, a PvP mode where:
- Two players fight four bosses
- The player who deals the most damage wins
Best Tips for Rainbow Grid
- Aim for exactly three Stars per match to activate Fever Mode
- Use Bombs strategically to clear dense item clusters
- Focus on fully completing progress bars instead of spreading progress
- Prioritize Party Invitations and high-value shop items early
- Avoid excessive Gem spending on party joins unless you accept the risk
The Rainbow Grid event offers some of the best rewards seen in recent Survivor.io events, especially with access to Legend Collectibles, Core Choice Chests, and the return of Lucky Chest Party. While some systems rely heavily on luck, smart Bell usage and careful planning can make this event extremely rewarding even for free-to-play players.
