Avalon II

Provider

Games Global

Default RTP

97.0%

Volatility

Medium

Maximum win

See in-game info screen

Core mechanic

Quest bonus

What Avalon II is

Avalon II: The Quest for the Grail is Games Global's Arthurian sequel, released under the Microgaming name, and it carries the deepest bonus structure in that catalogue — a multi-stage Grail Quest where each stage is a different bonus round.

It is also, on some published figures, the highest-returning game in the entire Microgaming library. On others it is not. That disagreement is the most important thing on this page and this page leads with it.

The RTP figures disagree — badly

Three different figures appear for this game across otherwise credible sources:

Reported return	House edge	Cost per $1,000 staked
97.12%	2.88%	~$29
97.00%	3.00%	~$30
96.50%	3.50%	~$35

That is a spread of over six tenths of a percentage point — roughly $6 per $1,000 staked between the extremes. Not catastrophic, but enough to matter across a long session, and enough that we are not going to pick one and present it as settled.

Our stat panel carries 97.0% as the middle of the published range. Treat it as an indication that this is a high-RTP title, not as a promise.

The Grail Quest

The signature feature. Rather than one free spins round, Avalon II runs a multi-stage quest in which each stage is a distinct bonus with its own mechanics — different modifiers, different structures, different values.

You progress through the stages by triggering the bonus repeatedly, in sequence. Reaching the final stage requires working through everything before it.

It is the most elaborate bonus structure in this studio's catalogue and arguably in mainstream slots generally. Reviewers consistently describe it as the most immersive feature set Microgaming has built.

The stages, and the order problem

Here is the honest caveat that most coverage skips: the best bonus round requires hitting specific triggers in a specific order.

That is a real constraint. On a normal slot, every bonus trigger is equally valuable. Here, your fifth trigger is worth more than your first, and reaching the final stage means the game has to cooperate repeatedly across an extended period of play.

Two consequences follow:

• Short sessions see almost none of the game. The early stages are the least valuable, and they are all a brief session will produce.
• The advertised depth is largely theoretical for most players. The eight-stage — or six-stage — structure is genuinely impressive, and the majority of people who play this game will never see its later half.

Six stages or eight?

Sources disagree here too. Some describe a six-stage Grail Quest, others an eight-stage structure.

The likely explanation is that different builds or regional versions differ, or that some sources count sub-stages separately. We are not able to resolve it confidently, so we are flagging it rather than picking.

What matters practically is unchanged: the quest is long, the later stages are the valuable ones, and reaching them takes sustained play. Read the rules pages in your build for the actual structure.

The published numbers

Statistic	Figure
Reported return	96.50% to 97.12% depending on source and build
Maximum win	Not reliably published — read your paytable
Volatility	Medium
Bonus structure	Multi-stage Grail Quest, six or eight stages depending on source
Studio	Games Global (Microgaming)

Why we don't publish a max win

Our stat panel shows "check in-game" for the maximum win, and that is deliberate.

Microgaming's older titles frequently do not publish a headline stake-multiple ceiling the way modern releases do, and the third-party figures we found for this game were not consistent enough to quote as fact. Given that the return figure itself is disputed across three values, attaching a confident ceiling would compound the problem.

What can be said: this is a medium-volatility game from an era when ceilings were modest. Do not expect a five-figure multiple, and read the paytable in your build if the top end matters to your decision.

Feature depth versus practical value

Avalon II is worth using to make a general point, because it is the clearest example on this site.

Feature depth and player value are different things. This game has more distinct bonus content than almost anything we cover — and because that content is gated behind a sequential quest, most players experience a fraction of it. A simpler game with one good round that triggers regularly may deliver more actual enjoyment per dollar.

Compare it with Immortal Romance, whose four Chamber rounds also unlock progressively but which only needs a handful of triggers to reach its better tiers, at a documented 96.86% return. Same studio, same design philosophy, considerably more accessible.

None of that makes Avalon II a bad game. It makes it a game that rewards commitment specifically, and one whose marketing describes an experience most players will not have.

Stake sizing in practice

• Budget for a long session — 400 spins or more — since the quest structure needs repeated triggers to progress.
• Check the active return in the Help or Info section first, given the published spread from 96.50% to 97.12%.
• Read the maximum win in your own paytable; we cannot supply it.
• Medium volatility supports a longer session, but a longer session at any edge is more total cost. Set a time limit.
• Do not treat quest progress as sunk cost. It has no cash value and does not improve your odds.

Where this fits in a session

Avalon II is for a player who wants to work through something rather than spin for outcomes. If narrative progression is what makes slots enjoyable for you, nothing else in this studio's catalogue goes as deep.

If you are choosing on numbers, the picture is murkier than the "highest RTP in the catalogue" claim suggests — because that claim depends on which of three published figures your casino is actually running. Immortal Romance at a documented 96.86% is the safer value pick, and Thunderstruck II at 96.65% offers similar progression with fewer gates.

Common misconceptions

The first is that Avalon II definitely has the highest RTP in the Microgaming catalogue. It might, at some casinos. Published figures range from 96.50% to 97.12%.

The second is that more bonus stages means more value. Gated content that most players never reach is depth on paper.

The third is that quest progress improves your odds. It unlocks better bonus rounds; the house edge is unchanged throughout.

Who this suits

This suits a committed player who enjoys long sessions with a sense of progression, and who has checked the active return at their casino and found a good one. On a 97.12% build it is genuinely excellent value.

It suits poorly anyone playing briefly, anyone who wants a defined ceiling before committing, and anyone who would find gated content frustrating rather than motivating.

FAQ

What to do when sources disagree

This page has flagged two separate disagreements — the return figure and the number of quest stages — so it is worth setting out how to handle that generally, because it happens across this industry constantly.

1. Prefer the studio's own figure where one exists. A developer's game page outranks any aggregator.
2. Prefer the in-game panel over everything. It is the only source describing the build you are actually playing, and it is authoritative by definition.
3. Treat consensus across review sites with suspicion. Aggregators copy each other; three sites agreeing may be one error repeated twice.
4. Where a spread exists, assume the lower figure when deciding whether a game is good value. If it turns out better, that is upside rather than a disappointment.
5. Note that configurable tiers make several figures simultaneously true. On this studio's games, 96.50% and 97.12% may both be accurate — at different casinos.

Applied here: assume 96.50% when deciding whether to play Avalon II, check the panel when you open it, and treat anything above that as a bonus.

Reading the info screen

• The active return figure — essential here given the 96.50% to 97.12% published spread.
• The actual number of quest stages in your build, since sources disagree between six and eight.
• The trigger conditions for each stage, including any order requirement.
• The maximum win, which we do not publish because it is not reliably documented.
• The total bet field.

This game has more unresolved figures than almost anything else we cover, which makes the in-game panel unusually valuable. Two minutes there answers questions no review can.

Gated content and how to value it

Avalon II raises a question worth answering generally: how should you value a game whose best content is locked behind sustained play?

The honest answer is that you should value it at what you will actually reach. If a realistic session for you is 200 spins, the relevant question is what the first two or three quest stages are worth — not what the eighth is.

That reframing changes which games look good. A slot with one strong round triggering every 150 spins delivers more per session than a slot with eight rounds where you only ever see stages one and two. The second game has more content and the first gives you more of it.

Applied here: Avalon II is excellent value for someone who plays it repeatedly over weeks, and mediocre value for someone dipping in once. Very few reviews make that distinction, and it is usually the one that matters most.