If you want to go back to primitive age, then you can play free B.C. Bonus slot. Parlay Games has developed this game. Your mission will be fulfilled on 5 reels and 20 pay lines.
On the board of this no registration game, you will watch primitive symbols. These are a hammer with clamp, mammoth, flying dinosaur, bow and quiver, fire, an impression of palm, etc. You will realize the importance of hammer and clamp when the symbol appears 5 times on a pay line. You will win 600 coins. The wild symbol can replace any other symbol except scatter and bonus to complete a combination. The bonus feature is activated with 3, 4 or 5 bonus symbols. The bonus round can be triggered during free spins. For activating free spins, you have to grab free spin symbols.3, 4 or 5 such symbols offer 13 free spins, where all wins are tripled.