Before the grid: the base game
Twenty paylines pay from the leftmost reel. The caveman with his club is the only symbol that pays for two in a row: RM1.50 at RM2.00 total bet, up to RM75.00 for five. None of the seven rules pages mentions a Wild symbol.
The BONUS rock lands on any reel. It can hit normally or be dropped onto the screen at the end of a spin, and three or more start the main feature.
MEGA HOLD AND SPIN: rocks that stay
After line wins are paid, a 10x10 grid appears with special reels of rocks and empty spaces. Five rock colours carry fixed values at RM2.00: orange RM2.00, pink RM1.20, golden RM0.80, green RM0.40 and blue RM0.20. The BONUS count decides which colours join: with five BONUS only orange, pink and golden; with four, green as well; with three, all of them.
You get 3 respins. Rocks stay put, and any new rock resets the count to 3. The round ends when respins run out or the grid is full. After any respin, rocks can be added at random in random places with a fire animation.
Big rocks from clusters
When rocks of one colour form a 2x2 square, they merge into a big rock with a random multiplier of 5x to 10x. A 3x3 square gets 35x to 500x. The multiplier applies to the value of every symbol in that cluster.
The key trail and the MYSTERY MULTIPLIER
Some rocks carry a key, and keys fill a trail. Each chest reached opens one random award: one rock's value multiplied by 0.5x to 500x, a money award of 10x to 500x total bet, 4 to 10 extra keys, a general multiplier of 2x to 100x for the whole round, or one retrigger. Several general multipliers multiply together.
At the end of the trail sits the MYSTERY MULTIPLIER, a random 2x to 100x that multiplies the general multiplier so far; then the trail starts again. The pages do not say how many keys a chest needs.
A retrigger, from a chest or a full grid, replays the round on a cleared grid with 3 respins once the current round ends. Retriggers stack and play in order. At the end, rock values are added, the general multiplier is applied and the total is paid.
Cap and bankroll
Total wins stop at 10,000x bet. The cap lines mention free spins, although the rules pages do not mention a free spins round. Bets run from RM0.20 to RM480.00. Set a spending limit, try small stakes and stop at the limit.
Rock Vegas paytable
RM amounts the rules page shows at a total bet of RM2.00 for 5 / 4 / 3 / 2 matching symbols on a payline from the leftmost reel; they change with your bet.
| Symbol | 5 | 4 | 3 | 2 |
|---|---|---|---|---|
| Caveman with club | 75.00 | 30.00 | 15.00 | 1.50 |
| White sabre-toothed tiger | 50.00 | 20.00 | 10.00 | – |
| Green dinosaur | 50.00 | 20.00 | 10.00 | – |
| Woolly mammoth | 25.00 | 10.00 | 5.00 | – |
| A | 12.50 | 5.00 | 2.50 | – |
| K | 12.50 | 5.00 | 2.50 | – |
| Q | 7.50 | 2.50 | 1.50 | – |
| J | 7.50 | 2.50 | 1.50 | – |
| 10 | 7.50 | 2.50 | 1.50 | – |
Rock symbol values (RM at a total bet of RM2.00)
| Rock | Value |
|---|---|
| Orange | RM2.00 |
| Pink | RM1.20 |
| Golden | RM0.80 |
| Green | RM0.40 |
| Blue | RM0.20 |
Rocks in play by BONUS symbols
| BONUS symbols | Rocks present |
|---|---|
| 5 | Orange, pink, golden |
| 4 | Orange, pink, golden, green |
| 3 | All rocks |
Chest awards on the key trail
| Award | As printed |
|---|---|
| Rock multiplier | One rock symbol's value x random 0.5x to 500x |
| Direct money | Random 10x to 500x total bet |
| Keys | Random 4 to 10 keys added to the trail |
| General multiplier | Random 2x to 100x on the round's total win |
| Retrigger | One retrigger |
Rules and paytable taken from the in-game help pages in October 2026.