Mainio Casino Bonus: the three deposit offers

Anyone looking for the Mainio Casino bonus wants to know three things before deciding: how much the brand awards on each deposit, what conditions must be met, and where the bonus ends and your own money begins. Mainio Casino structures its welcome offer into three successive deposits, each with a percentage, a maximum limit, and a fixed number of free spins. To understand the brand’s overall operation, including the operator and account access, see the Mainio Casino home page.

Summary of the three deposit offers

The table below groups the three deposit promotions announced by the brand. The amounts refer to the welcome offer structured in three consecutive deposits, not to separate or recurring promotions.

Each line is independent: the player decides whether to move on to the next deposit, and the bonus amount is calculated on the amount deposited at that moment, not on the accumulated total.

First deposit: 100% up to €300 + 25 free spins

The first deposit doubles the amount invested up to a limit of €300, adding 25 free spins to the account. This is the entry point of the welcome offer and is usually the deposit with the greatest visibility in the newly created account. The credited bonus is subject to the wagering requirement described below before it can be converted into withdrawable balance.

Second deposit: 60% up to €500 + 30 free spins

The second deposit lowers the percentage to 60%, but raises the maximum cap to €500 and adds 30 free spins. In practice, this makes it possible to receive an absolute bonus amount similar to or greater than the first deposit, if the player deposits a higher amount.

Third deposit: 75% up to €400 + 25 free spins

The third deposit sets the percentage at 75%, with a limit of €400 and another 25 free spins. It closes the welcome cycle in three stages and functions as the last opportunity to activate a bonus specifically linked to this deposit sequence.

Included free spins and cash spins: what is the difference

The 25, 30, and 25 free spins described above are part of each of the three deposits: they are credited automatically when the corresponding deposit is completed. Cash spins are a separate feature of the Mainio Casino brand and do not replace or automatically add to these three free-spin lines. Before assuming that a promotion includes cash spins, confirm the exact mechanics in the current terms shown in the account, as this is a separate feature from the three-deposit welcome package.

Wagering requirement and minimum deposit

According to the general conditions published by the brand, the minimum deposit to activate the bonus is €20. The wagering requirement applied to the bonus amount is 40× the sum of the deposit and the bonus — that is, 40×(deposit + bonus) — and not a game-specific contribution percentage. This means that, in order to release the bonus, it is necessary to wager a total volume equivalent to forty times that sum before any withdrawal related to the bonus amount. Games in the catalogue, such as The Dog House Megaways or Book of Dead, may contribute differently to this requirement, and that specific contribution should always be confirmed in the official terms before assuming that a given slot speeds up wagering completion.

Transparency, updating, and legal verification in Portugal

Bonus conditions in iGaming change frequently, so the amounts above should be confirmed directly in the player account or in the terms and conditions presented at the time of deposit, before making any decision. This site does not process deposits, does not replace the official access to the operator, and does not guarantee that the values described here are active at the time of reading.

In Portugal, only entities holding a licence granted by the Serviço de Regulação e Inspeção de Jogos (SRIJ) are authorised to operate online games and betting. The SRIJ provides a public list of licensed entities and recommends checking that list before playing on any site, regardless of the brand or the advertised offer. It is also recommended to confirm directly with the operator the responsible entity, the licence number applicable to the Portuguese market, withdrawal rules, response times for complaints, and the responsible gaming tools available, such as deposit limits, self-exclusion, and minimum-age restrictions for playing.

This is an independent information site about Mainio Casino. It does not represent or operate Mainio Casino, and its content does not constitute proof of licensing, reputation, or official approval of the brand in Portugal. Content intended exclusively for people aged 18 and over.