In the Roblox quiz game Guess The Real Size, coins serve as the primary currency for opening crates and unlocking cosmetics like custom chairs and weapons. If you want to build your currency balance quickly, getting double coins is the most effective approach.
Players have two official paths to double coin earnings: unlocking and playing in the competitive Hard Mode, or purchasing the x2 Coins game pass.
How to Unlock Double Coins in Hard Mode
Hard Mode is the built-in gameplay method for earning double coins without spending Robux. However, it is locked behind progression requirements and comes with stricter duel rules.
To enter Hard Mode, you must first accumulate 10 duel wins in standard matches. Once unlocked, Hard Mode alters the standard match flow:
- Entry Requirement: 10 total wins in standard play.
- Turn Timer: 6 seconds per round (down from the relaxed standard timer).
- Scale Pool: Unrestricted sizes spanning every category, from small animals to monuments, planets, and galaxies.
- Reward: Double coins for your match performance.
Because Hard Mode cuts your decision window to just six seconds, you must identify object categories instantly. The standard 4-life duel system still applies, meaning consistent estimates are necessary to outlast your opponent and secure the doubled coin payout.
The x2 Coins Game Pass
For players looking for an immediate payout boost across all sessions, the developer offers an official game pass directly on the Roblox experience page.
| Game Pass | Robux Price | Effect |
|---|---|---|
| x2 Coins | 59 Robux | Doubles coin earnings from matches |
| x2 Win | 59 Robux | Doubles win progression count |
| x2 IQ | 59 Robux | Doubles IQ gains from accurate guesses |
| Starter Pack | 99 Robux | Bundled progression starter options |
The x2 Coins pass costs 59 Robux and applies a direct multiplier to your coin income.
What Are Coins Used For?
Earning coins at double the normal rate accelerates your cosmetic collection. According to the game's official details and wiki documentation, coins are spent on:
- Crates: Purchasing loot crates to unlock vanity items.
- Guns: Cosmetic weapon unlocks displayed during rounds.
- Chairs: Table seating cosmetics used during duels.
- High-End Unlocks: Exclusive cosmetics such as the premium Shadow Monarch chair, which require larger coin balances.
Cosmetic items do not alter duel hitboxes or guessing scales, but they serve as the primary long-term progression goals outside of climbing the IQ and Wins leaderboards.
Claiming the 200 Free Group Coins
Before grinding Hard Mode, new players can collect an immediate one-time balance bonus directly from the developers.
By liking the game, favoriting the page, and joining the official Roblox developer group (Guess that?), you receive:
- 200 free bonus coins
- An exclusive RGB Chair cosmetic
This bonus does not require promo codes and gives you enough starting funds to open early crates before entering duels.
Tips to Win Double Coin Matches
Because Hard Mode imposes a strict six-second countdown, relying on slow trial-and-error slider adjustments will often result in timeouts and lost lives. Use these strategies to protect your four lives:
- Practice in Solo Play: If you struggle under time pressure, use Solo Play to duel the training bot. This lets you practice rapid size estimation across animals, vehicles, and planetary scales without risking your duel streak.
- Anchor Everyday Scales First: Everyday objects (such as animals and vehicles) should be compared directly to human height (around 1.7 to 1.8 meters) or standard cars (around 4.5 meters).
- Count Building Floors: For monuments and towers, think vertically. One story of a building equals roughly 3 meters (10 feet).
- Shift Immediately on Astronomical Objects: When planets or galaxies appear, immediately abandon car and building measurements. Earth's diameter serves as the core baseline for planets, while galaxies represent the extreme upper end of the scale slider.
- Lock In Early: Submitting a rough estimate within four seconds is safer than making fine-tuned adjustments that get cut off by the six-second timer.
Frequently Asked Questions
What gives double coins in Guess The Real Size?
Double coins are awarded naturally by participating in Hard Mode matches. Players can also purchase the x2 Coins game pass for 59 Robux.
How do I qualify for Hard Mode?
You must achieve at least 10 wins in standard duels against other players or bots to unlock access to Hard Mode.
Does Guess The Real Size have active promo codes for coins?
There is currently no official promo code redemption system supported by the game. The verified developer bonus is obtained by liking the game, favoriting it, and joining the "Guess that?" Roblox group for 200 free coins and an RGB chair.
What happens if I run out of time in Hard Mode?
Hard Mode gives you only six seconds to submit your guess. Failing to lock in a reasonable estimate before time expires will likely result in losing one of your four match lives.
