There comes a point when a company can no longer hide behind the epithet "independent", which somehow implies small and occasionally tawdry. In Cwali's case, that time is now. It should have come last year when the perplexing Titicaca was born. Whilst I love this game, I simply haven't got a clue as to what is going on.

But no such problem with Zoo Sim, which shares the outstanding component production with its predecessor, but has an entirely intelligible set of rules and an orthodox procedure.

Participants in this game are owners of a small zoo and must stock their compound with a variety of wildlife. This is achieved by bidding for land tiles which will abut previous construction and provide a visual feast of the five groups -- fish, apes, reptiles, birds and assorted mammals -- available.

Having constructed your entrance (a screen to conceal coins -- eight each to commence), the 25 zoo tiles are shuffled, and five drawn to form the first Season. The contest concludes when all 25 tiles have been distributed.

Each colour-coded tile features a pathway, plus visual reference to one or more attractions. Additionally, the animals (the term used in the rulebook to facilitate all types) are rated by a star system. What you are hoping to achieve is a grouping of like animals, with a higher concentration of stars than your opponent. Eight usually does it, but this requires dexterity, solid spatial technique and a well-judged commitment when bidding. So, count me out.

Having exposed five tiles, the first is bid for, using the simple "in the fist" method, ie select concealed coins from your stock, simultaneously reveal, with the highest total winning. Ties are resolved using a unique "flagpole mechanism", onto which your company motif is placed (random to start). The highest flag on the pole wins ties, and is then demoted to the base. This is crucial towards the end of a Season when the dosh is running low.

So, what to bid for, and for what benefit?

Apart from the intrinsic financial value of the tile, players earn "visitor" tokens for their respective animal pens. Additionally, these tokens are awarded for completed walkways (loops) and the most trees (as depicted on the tiles).

Constructing settlements looks straightforward, but only provide value when adjacent. And because the tiles feature multiple groups (eg fish and apes), the options can prove confusing (not unlike Carcassone).

Let's assume you've won the first auction (at a cost of four coins) and have placed a three star aviary (birds, you fool!) and two-star ape house. The next tile you really fancy (and the last in sequence) is two-star bird and reptile combination. You'll be strong in the feather department, whilst making a foothold with our slimy brethren. And it's vital to grab tiles, because they are your only source of additional funding (added to that you have retained).

In an ideal world, you will seek to win at least two of the auctions, thus providing a solid base for future income, but will almost certainly have come close to exhausting your initial capital in doing so.

When visitors (the scoring mechanic) are initially placed, consider their loyalty tenuous. They will switch from site to site in this competitive marketplace, only likely to stay when a player builds an overwhelming pound.

Upon the inauguration of a specific animal house, the player shows control with a single token. Once two or more entrepreneurs are competing, additional visitors join the jamboree. This boils down to two points for the most stars, and one for second place. Trees are scored in an identical manner, whilst completed walkways provide permanent victory points. A generously illustrated leaflet provides clear examples of all likely scenarios.

At the end of each season (five auctioned tiles or "game rounds"), currency is distributed (one coin per tile) and visitors counted. From the second season onwards, multipliers are introduced, starting with 2x, then 3x, etc. For example, in season two, 8 visitors would equate to 16 points.

I had a certain unease about the possibility of a player striking out and establishing an unassailable lead. This has happened, but not consistently, so should not be considered a faultline.

Although I am probably the last person in the world to proffer advice, you will need strength in at least two animal groups, and because they cannot be challenged, walkways are effective.

Oddities? None really, although empty spaces are allowed, because tiles can be placed "half on half" as long as pathways connect. Frustrations? Plenty, as you try to assimilate your new purchase to maximise established holdings. Enjoyment? Undeniably. Zoo Sim could have easily come from the Kosmos or Hans im Glck factories, and Corn van Moorsel (in the guise of Cwali) is now on the frontline.